Everyday Science - Chemistry

Read Everyday Science - Chemistry Information for PPSC, SPSC, BPSC, KPPSC, NTS, PTS, OTS and other quiz competitions.

Everyday Science - The candidates are expected to have basic knowledge of Biology, Physics, and Chemistry. Scientific terms, Inventions, Discoveries, Human body, celestial bodies and environmental issues/problems. In general the candidates could be tested on knowledge of everyday observation and experience of things and phenomenon in the context of their scientific explanations.
  • [message]
    • Everyday Science - Chemistry

      • Read Everyday Science - Chemistry and enhance your Everyday Science Knowledge.
  1. Substance which changes readily into vapor upon heating is called volatile
  2. Selenium is a non metal
  3. Most elastic among carbon, rubber, glass and paper is glass
  4. Quartz is chemically silicon dioxide
  5. Highest electrical conductivity is of Silver
  6. Vinegar contains Acetic Acid.
  7. Lightest element found in nature is hydrogen
  8. Heaviest atom is uranium with atomic weight 92 amu
  9. Molasses is a by-product of sugar industry.
  10. Formic Acid is used in dying, tanning and electroplating.
  11. Sodium Benzoid is used for the preservation of grains.
  12. Which gas discovered in 1898 has a name meaning new Neon.
  13. The metal known as quick silver: Mercury
  14. Ethylene is a gas concerned with Ripening of fruits.
  15. Opium is obtained from seed capsule of opium poppy.
  16. Dry Ice is solid Carbon dioxide
  17. The most common element in the universe is Nitrogen.
  18. Geologists have classified nearly 3000 minerals.
  19. Igneous rocks are solidified form of molten magma.
  20. Sedimentary rocks are formed by the deposition of sediments in water.
  21. Metamorphic rocks are the rocks transformed by the action of intense heat or great pressure or chemical activity.
  22. Shale is a metamorphic rock.
  23. Sedimentary rocks cover about 75% of world’s land area.
  24. Moon rocks collected by astronauts are igneous in type.
  25. Ore of Aluminum is Bauxite
  26. Pyrolusite is an ore of manganese
  27. Myrolusite is an ore of Manganese.
  28. Ore of Gold is Native Gold
  29. Argentite is an ore of silver
  30. Magnetite and hematite are iron ores.
  31. The important ore of Chromium is Chromite
  32. Bauxite is an ore of aluminum. It contains mineral alumina, or aluminum oxide.
  33. Diaspore, Felspar, Alurite, Zibcite, and Bauxite are the ores of Aluminum.
  34. Malachite is an ore of Copper
  35. Radium is extracted from an ore called Pitch Blonde
  36. Which element is extracted from the ore Sphalerite-Zinc
  37. Saccharine is obtained from coal tar
  38. What is extracted from the ore cinnabar-Mercury
  39. What is extracted from the ore caserite-Tin
  40. Aqua Regia is the mixture of Nitric Acid and HCL in 1:3.
  41. Bronze is the mixture of Copper and tin.
  42. Brass is an alloy of Copper and Zinc
  43. Bronze is an alloy of copper and Tin
  44. Stainless steel is an alloy of carbon +Iron with Chromium and Nickel
  45. German silver is an alloy of copper with nickel and zinc
  46. Solder is an alloy of lead and tin
  47. Dental amalgam = mercury +silver, Tin, Zinc, Copper
  48. Duralumin = aluminium + copper + magnesium
  49. Pewter is an ancient alloy made of tin and lead
  50. Aluminum is used mostly in aircrafts
  51. Camphor exhibits the property of sublimation.
  52. The alloy which consists of copper and tin.Bronze
  53. Excessive use of fertilizers causes death of pants due to exomosis.
  54. Stainless steel => Carbon + Iron + Chromium + Nickel.
  55. Bronze does not rust.
  56. Dental Amalgem => mercury + Silver, Tin, Zinc, Copper.
  57. Duralumin => aluminum+Copper+magnesium.
  58. Brass => Copper + Zinc.
  59. Pewter => an ancient alloy made up to tin and lead.
  60. Aluminum is used mostly in aircrafts.
  61. Australia has the largest bauxite deposits.
  62. Aluminum metal is obtained from aluminia by electrolysis – passing electricity through it. This process was discovered independently in 1886 by Charles Hall in the USA and Paul Heroult in France.
  63. Asbestos does not burn and it is a mineral fiber
  64. Amalgam is a mixture of metal and mercury
  65. Nickel is used as a catalyst while manufacturing ghee
  66. After persistent decay, radium would be finally changed into Lead.
  67. Mercury is a liquid with greatest density
  68. Noble metal are non-reactive metals example Gold, Silver and Platinum
  69. Mica is an excellent insulator
  70. Purest form of iron is wrought iron
  71. Cast iron has highest carbon content
  72. Sodium, potassium and magnesium are reactive metals
  73. Sodium burns in water not in kerosene
  74. Conductivity level - 1)silver, 2)copper, 3)aluminum, 4)iron
  75. PVC = Ployvenyl Chloride
  76. First synthetic materials was Celluloid in 1868
  77. Second synthetic material by Bakelite invented by Leo Hendricks Backland
  78. Largely limestone is used in the production of cement
  79. Granite can be found in igneous rocks.
  80. Coal and petroleum are found in Sedimentary rocks
  81. Gold and copper are mostly found in old Igneous rocks
  82. Magnesium is abundant in sea
  83. Sources of uranium in Pakistan is Dera Ghazi Khan
  84. What type of acid is used in car batteries Sulphuric
  85. Copper can be converted into gold by: Artificial radioactivity
  86. Tungsten has the highest melting point = 3410 deg: C
  87. The coil used in a heater is made of Nichron
  88. Common Salt is NaCl = sodium chloride
  89. Chuna is Ca(OH)2 = calcium hydroxide
  90. Washing soda = Na2CO3= sodium carbonate
  91. Baking soda = NaHCO3 = sodium bicarbonate
  92. Chalk = CaCO3 = calcium carbonate
  93. Plaster of Paris = CaSO4.1/2 H2O
  94. Gypsum salt is CaSo4 + 2H2O.
  95. Cholestrol = C27 H46O
  96. Carbohydrates = C+O+H
  97. Protein = C+Nitrogen + O+H
  98. C2 H5 OH is the formula of what - Alcohol
  99. H14 N2 is a poisonous alkaloid consumed daily by millions what-Nicotine
  100. What element was named after the Greek word for green-Chlorine
  101. What elements name comes from the Greek for light bearing-Phosphorous
  102. Alphabetically what is the first element in the periodic table-Actinium
  103. What elements name comes from the Greek word for violet-Iodine
  104. Mercury is also known as Quick Silver
  105. Coal is also known as Black Diamond
  106. The lightest known metal is Lithium
  107. The oil used to preserve timber is Creosote oil
  108. Lime stone is predominantly used raw material in the production of cement.
  109. An element found in all organic compounds is carbon
  110. Most commonly used bleaching agent is chlorine
  111. Lime is sometimes applied to soil in order to increase the alkalinity of the soil
  112. Podsols are Acidic soils
  113. Source of plaster of Paris is gypsum
  114. Chemical name of plaster of Paris is Hemihydrates
  115. Naturally occurring elements are 92
  116. Total elements are 109
  117. Alkaline soil is treated with gypsum
  118. Marble is metamorphic rock
  119. Limestone is sedimentary rock
  120. Limestone transforms into marble
  121. Thorium is both magnetic and radioactive
  122. Finest quality of pottery is procelin. It is make from the purest white clay such as kaolin also called China clay and heated at 1400 deg: C
  123. Bone china is an imitation porcelain made using clay mixed with bone ash
  124. Mud bricks are called adobe
  125. Materials that resist high temperatures are known as refectories
  126. Refectories contin tungsten, the metal with highest melting point (3410 deg: C).
  127. Some refectories contain tungsten carbide which is used to make cutting tools that remain sharp even when they get red hot
  128. Rungsten and titanium carbides are mixed with ceramics to form cerment which are used in high temperature parts of jet and rocket engines
  129. Cement is a ceramic product made of fiercely haeating (1500 deg: C) earthly material like limestone and clay
  130. Concrete is strong under compression but weak if streatched (tension). For this engineers cast steel rods into the concrete. This is called reinforced concrete.
  131. Ceramic is made by heating and mixing together the ceramic material boron carbide and aluminium. It is lighter than aluminum and stronger than steel
  132. Sodium carbonate is used in making glass and in caustic soda for making soap
  133. Sulphuric acid is also known as “lifeblood of industry”
  134. Oxidation is addition of oxygen to the substance
  135. Hydrogenation is adding hydrogen
  136. Hydrogen is the commonest element in the universe.
  137. Hydrogen is a powerful fuel. The main engines of the space shuttle are powered by hydrogen.
  138. Hydrogen is used in fertilizers, margarine and plastics.
  139. Serenium is non metal substance.
  140. ‘Ion exchange’ is the method to remove the temporary or permanent hardness of water.
  141. Molasses (Gur) are a by product of sugar industry.
  142. Polymerization is the reaction by which plastics are made. It involves linking together of small molecules (manomers) to form large ones (polymers)
  143. Halogens mean salt like. It is a group of highly reactive nonmetals that are poisonous in their pure forms. Other halogens are fluorine, bromine, iodine, astatine.
  144. Salt is one of the halogens
  145. Halogens light bulbs used in cars’ headlamps (ususlly iodine or bromine) surrounding the light filament. Halogen bulbs are brighter and last longer than ordinary light bulbs.
  146. Fluoride compounds in toothpaste and drinking water help to prevent tooth decay.
  147. Chlorine reacts with other elements and form PVC, a plastic for pipes and waterproof fabrics.
  148. Iodine sublimes at room temperature (i.e turns directly into a gas)
  149. Chlorine is used in swimming pools to kill germs.
  150. Palladium metal is used in air craft
  151. Liquid sodium is used a coolant in nuclear reactor
  152. Plutonium-239 is a good nuclear fuel
  153. Aviation fuel for jet aeroplanes consists of purified kerosene
  154. Co2 is used in fir extinguishers
  155. Cooking gas is oxygen+methane
  156. Hydrogen has the highest fuel value
  157. Ripening of fruits is hastened by Ethylene gas
  158. Iron rusts due to formation of a mixture of ferrous and ferric hydroxide
  159. Chemically soap is a salt
  160. Dalton’s atomic theory gave the concept of Valency
  161. When radioactive rays are passed through air or any gas , they cause it to ionize
  162. Formic acid is present in sour milk
  163. Butane gas is used in cigarette lighters
  164. LPG contains Butane and propane
  165. In soft drinks Co2 is used
  166. Rust stains on cloth is revoved by Oxalic Acid solution
  167. Acid in lemon and grape fruit is Citric Acid
  168. Permanent magnets are make from Ferromagnetic substances
  169. Melting point of Tungsten is 3000 deg: C
  170. Mercury is used as a solvent in refining silver
  171. Serenium is non metal substance.
  172. Aqua Regia is the mixture of Nitric Acid and HCL in 1:3.
  173. Sodium Benzoate is used to preserve food articles.
  174. Gas used for purification of water is chlorine
  175. Formic Acid is used in dying, tanning and electroplating.
  176. In galvanization iron sheet is coated with Zinc
  177. Mahalanobis model laid great emphasis on development of heavy industries.
  178. Oxidation is the process in which electron is lost.
  179. Camphor exhibits the property of sublimation.
  180. Gypsum salt is CaSo4 + 2H2O.
  181. Excessive use of fertilizers causes death of plants due to exomosis.
  182. Sodium Benzoate is used to preserve food articles.
  183. Bee stings contain formic acid
  184. BHCC Benzene Hex chloride is used for killing for insects.
  185. Opposite of acid is alkali
  186. Pure water has pH of 7
  187. pH scale ranges from 0-14
  188. Cola drinks contain phosphoric acid to give them flavor
  189. People used to treat bee stings by rubbing them with bicarbonate of soda
  190. Acid contains hydrogen and react with metals such as iron and zinc, they give off hydrogen
  191. Acid turns litmus paper red
  192. Alkali turns litmus paper blue
  193. Alkalis are part of a group of chemicals called bases.
  194. Alkalis are bases that dissolve in water, have bitter taste and feel soapy
  195. When an acid meets an alkali both are changed- they are neutralized.
  196. When acid meets alkali salt and water is produced
  197. Stomach produces hydrochloric acid
  198. Strong acids like sulphuric acid is usesd in factories to make fertilizers, explosives, plastics, synthetic fabrics, paints, dyes, medicines, detergents and other chemicals
  199. Example of strong alkali is Sodium Hydroxide (caustic soda)
  200. Sodium hydroxide solution dissolves fats and used to clean oven and drain blocked cleaners
  201. In industry alkalis are used in the manufacture of soap, glass, paper and textile and in the refining of crude oil
  202. Aluminum metal is obtained from aluminia by electrolysis. This process was discovered by Charles Hall of US in 1886 and Paul Heroult in France
  203. Use of Boron and Zink can improve cotton yield
  204. ‘Ion exchange’ is the method to remove the temporary or permanent hardness of water.
  205. An example of inorganic compound is carbon monoxide
  206. Shoot is an example of amorphous carbon
  207. Different forms of same elements are called allotropes
  208. Diamond is allotropic form of carbon
  209. Graphite is used to hold molten metals
  210. Charcoad is used in gas masks for absorbing unpleasant smells
  211. Fullerences are the most recently discovered allotropes
  212. The main ingredient in glass making is sand, the mineral is silical.
  213. The ordinary glass used for bottles and windows is known as soda lime glass as it is made by using soda ash and limestone.
  214. Adding lead oxide in glass making recipe makes crystal glass which has extra brilliance and sparkles like a diamond.
  215. Glass with a very high lead content is made for the nuclear industry because it blocks harmful radiations.
  216. Boron is added to glass making recipe to protect glass from expanding and cracking when heated.
  217. Borosilicate glass is used to make heat resistant cookware and laboratory equipments.
  218. Glues comes from animals by boiling bones and skin of cattle and fish bones
  219. Gums come from the sticky resins make by certain plants.
  220. Most adhesives used today are synthetic and are usually made from petroleum chemicals.
  221. Among the strongest adhesives are the epoxy resins
  222. Gold is the most malleable metal of all
  223. Silver is used today in photography because many silver salts darken when they are exposed to light.
  224. Platinum is used in industry as a catalyst.
  225. Rubies and sapphires are made mostly of a material called alumina, but rubies are red beacuase they contain tiny amount of chromium and sapphires are ususlly blue as these cotain timy amounts of iron
  226. Driest deserts on earth are the cold, dry valley of Antarctica
  227. Detergents are synthetic products made from petroleum chemicals
  228. Soap is made by heating fat or oil with alkali like caustic soda. A product we get from making of soap is glycerine which is used in making plastics and explosives.
  229. Pure iron is quite a weak metal but if carbon is added to it, it becomes both strong and hard
  230. Iron bricks are called steel ingot
  231. Iron is not found in metal form but extracted from iron ore by smelting ie heating at high temp:
  232. 90 elements exist naturally and 25 artificially
  233. At room temperature most elements are solids but a number are gases like oxygen, hydrogen, nitrogen, helium and neon and only two are liquids like mercury and bromine.
  234. Gold rarely combine with other metals and fluorine is highly reactive
  235. Diamond and graphite are allotropes of carbon
  236. Hjeating coal without air produce coke which is used to make steel
  237. Bitumen (damber) is used for surfacing roads comes from coal
  238. Isotopes are same chemicals but with different physical properties
  239. Aircrafts are made of aluminum alloys.
  240. Chemical used in bettery cells is electrolyte
  241. Sulphuric acid is used in batteries as electrolyte
  242. In alkalin battery Anode = Zinc powder mixed with electrolyte and Cathode = manganese compound mixed with electrolyte
  243. Anode = negative terminal and Cathode = positive terminal
  244. Votalic Pile was the first battery made in 1799
  245. Fuel cells make electricity using hydrogen as a fuel
  246. Almost all explosives contain nitrogen. Nitrogen compound Ammonia is the starting point of several explosives.
  247. Calcium is a metal found in chalk, limestone and marble in the form of Calcium Carbonate
  248. Beryllium is used to make cutting tools where it is important to avoid spark
  249. Minerals containing beryllium don’t show up on x-rays, and are used for the windows of x-ray machines
  250. Magnesium is present in chlorophyll
  251. Sulphur dioxide is not an odorless gas
  252. Glass is soluble in Aqua Reggie
  253. Fuel in an automobile is a mixture of saturated and unsaturated hydrocarbons
  254. Power of alcohol is methyl and petrol
  255. Lead is used in batteries
  256. The odour of garlic is due to a Sulphuric compound
  257. Cabbage contains sulphur
  258. The strongest known acid is an 80% solution of antimony pentafluoride in hydrofluoriv acid.
  259. Saffron is used to color fabrics. Cochineal red is a dye extracted from insects.
  260. Crude oil and natural gas are made mostly from hydrocarbons. When they burn CO2 is released into atmosphere
  261. Synthetic fibers are mostly plastics make from petroleum chemicals.
  262. Lime is sometimes applied to soil in order to increase the alkalinity of the soil
  263. BHCC Benzene Hex chloride is used for killing for insects.
  264. Opposite of acit is alkali.
  265. Pure water has 7 P.H.
  266. Cola drinks contain phosphoric acid to give them flavor.
  267. Bee stings contain formic acid.
  268. People used to treat bee stings by rubbing them with bicarbonate of soda.
  269. Acid contains Hydrogen and reacts with metals such as iron and zinc, they give off Hydrogen.
  270. Acid turns litmus paper red.
  271. Alkalis are part of a group of chemicals called bases. Alkalis are bases that dissolve in water, have bitter taste and feel soapy.
  272. Alkali turns litmus paper blue.
  273. Stomach produces hydrochloric acid
  274. Backing powder => Bicarbonate of Soda -> an alkali
  275. Strong acids like sulphuric acid used in factories to make fertilizers, explosive, plastics, synthetic fabrics, paint, dyes, medicines, detergents, and many other chemicals.
  276. Strong alkalis => Sodium Hydroxide (Caustic Soda).
  277. Sodium Hydroxide solution dissolves fats used as oven and drain blocked cleaners.
  278. In industry, alkalis are used in the manufacture of soap, glass, paper and textile, and in the refining of crude oil.
  279. Chemical in cell of battery is called electrolyte.
  280. Lead metals are used in batteries.
  281. A personal stereo used alkaline battery. In this the electrodes are powders, mixed with an electrolyte to make a paste.
  282. Sulphuric acid is used in batteries are electrolyte.
  283. In alkalin battery:-
  284. o Anode = Zinc powder mixed with electrolyte.
  285. o Cathode= Manganese compound mixed with electrolyte.
  286. Anode = Negative Terminal
  287. + Cathode= Positive Terminal
  288. Votalic pile was the first battery in 1799.
  289. Fuel cells make electricity using hydrogen as a fuel.
  290. Carbon is the element of life.
  291. Shoot is an example of amorphous carbon.
  292. Different form of the same elements are called allotropes.
  293. Diamond is allotropic from of carbon.
  294. Graphite is used to hold molten metals.
  295. Charcoal is used in gas masks for absorbing unpleasant smells.
  296. Fullerenes are the most recently discovered allotropes.
  297. Carbon dioxide we release is comes from food we eat.
  298. Carbohydrates = C+O+H
  299. Protein = Nitrogen + O + H
  300. Chromatography shows what’s in the colored coating of some sweets.
  301. Mass spectrography is one of the most powerful ways of analyzing many kind of chemicals.
  302. Electrophoresis = > Separation of tagged core fragments of DNA with radioactivity.
  303. Sodium Carbonate is used in making glass and in caustic soda for making soap.
  304. Heavy Chemicals => Sodium Carbonate, Caustic Soda, Sulphuric Acid, Nitric Acid, Ammonia, Benzene.
  305. Sulphuric acid is also known as ‘lifeblood of industry’
  306. Sulphuric acid is made from sulphur by contact process.
  307. Benzene is known as organic chemical.
  308. Oxidation -> addition of oxygen to the substance is made.
  309. Hydrogenation -> adding hydrogen.
  310. Polymerization is the reaction by which plastics are produced. It involves the linking together of small molecules (monomers) to form large ones (polymere).
  311. Cracking - > large molecules are broken down into small ones (used in refining petroleum).
  312. Halogens means salt like.
  313. Chlorine combines with sodium to make salt (Sodium chloride). It is one of the halogens, a group of highly reactive nonmetals that are all poisonous in their pure forms.
  314. Other halogens are Fluorine, Bromine, Iodine, Astatine.
  315. The halogen light bulbs used in cars headlamps have a halogen gas, usually iodine or bromine, surrounding the light filament. Halogen bulbs are brighter and last much longer than ordinary light bulbs.
  316. Fluoride compounds in toothpaste and drinking water help to prevent tooth decay.
  317. Chlorine reacts with lots of other elements to make some very useful compounds such as PVC, a plastic for pipes and waterproof fabrics.
  318. CFC – Chlorofluoro carbons.
  319. Iodine (turns straight into a gas) (Sublimes) at room temperature.
  320. Chlorine is used in swimming pools to kill germs, that is why swimmers use goggles.
  321. Carbon has two isotopes.
  322. Muons are particles of atom.
  323. Isotopes have same chemical but different physical properties.
  324. Ions => In an atom, the positive electrical charges of the protons are balanced by the negative electrical charges of the electron. The atom is therefore electrically neutral. However, if you add or take away one or more electrons from an atom, it becomes either negatively or positively charged, such charged particles are called Ions.
  325. The purest naturally occurring crystalline form of carbon : diamond
  326. The mixture which can dissolve platinium : Aqua regia
  327. Steel is more elastic than rubber
  328. Marble is metaphoric rock
  329. Oil rises in a wick of oil lamp because of a property of matter, called capillary action
  330. Mercury metal is 13.5 times heavier than water
  331. Diamond is the purest naturally occurring crystalline form of : Carbon
  332. Caustic soda is extensively used for making : making Surf
  333. Charcoal Sulphur Saltpetre make what - Gunpowder
  334. What elements name comes from the Greek meaning lazy Argon
  335. What are silver coins made from-Copper Nickel
  336. Kallium is the old name for which element-Potassium
  337. Coal is formed from the remains of forests that grew in the carboniferous period about 300 million years ago.
  338. Half-time is a time of radioactive substance taken by that substance to decompose radioactivity to half of its weight.
  339. Calcium chloride is present in the common toothpastes as an abrasive.
  340. Copper and tin make gun-metal.
  341. Liquefied Petroleum Gas consists mainly of methane, butane and propane.
  342. Magnesium is a metal extracted from the sea water.
  343. Magnetite can be used for extraction of iron.
  344. The main constituents of Pearl are calcium carbonate and magnesium carbonate.
  345. Pollution in rivers is measured by the percentage of dissolved amount of Nitrogen.
  346. Uranium is called White Coal.
  347. Lead and tin are used in solder.
  348. Caffeine, a constituent of tea and coffee is a diuretic.
  349. Citric Acid is used in soft drinks.
  350. A substance which radiates light when heated to a high temperature is said to be incandescent.
  351. Light waves are electromagnetic.
  352. If a solution of pH 6 is diluted by 100 times, the resulting solution would be Acidic.
  353. Acid rain is caused due to emission of oxides of nitrogen and sulphur.
  354. Hydrogen iodide is used for writing on glass.
  355. Infrared radiation has the longest wavelength.
  356. Stainless steel cooking pans are fabricated with copper bottom because conductivity of copper is greater that that of stainless steel.
  357. Sucrose is the sweetest natural sugar among glucose, fructose and lactose.
  358. Lead is used in storage batteries.
  359. Nobel gases are so called due to their chemical inertness.
  360. Alum is not present in cement.
  361. Due to continuous use of calcium superphosphate as fertilizer in soil, the pH of soil becomes more than 7.
  362. Among the fertilizers used, urea contains maximum % of N.
  363. Potassium magnesium sulphate is called the muraite of potash.
  364. Sodium acetate salt when dissolved in water makes the solution basic.
  365. Yellow colour of usual nitric acid is due to the presence of N2O5.
  366. Astatine is the rarest naturally occurring element on earth.
  367. Nitrogen and carbon are most essential for building cells in the human body.
  368. Among the sedimentary rocks, limestone is of organic origin.
  369. Red Hematite is an ore of iron.
  370. Radio-carbon dating is used to find the age of fossils.
  371. Which of the following is used as raw material for the manufacture of rayon? Cellulose
  372. Saponification is the process that makes what common product: Soap
  373. If an alloy is an amalgam what metal must it contain-Mercury
  374. An example of inorganic compound is carbon monoxide.
  375. ATP is a molecule containing high energy bonds.
  376. Sand, Soda and what are the main ingredients of glass-Limestone
  377. Which acid dissolves glass- Hydrofluoric Acid
  378. What colour is iridium-Steel Grey
  379. What gives onions their distinctive smell- Sulphur - taken in when growing

COMMENTS

Shopping Online
Name

Biology 10th,9,Biology 9th,9,Blog,21,Career Development,3,Chemistry 10th,8,Chemistry 9th,8,Classroom Management,2,Computer,17,Computer 9th,8,Current Affairs,7,Education News,12,English,12,Everyday Science,14,General Knowledge,25,General Science,6,Intelligence Tests,2,Interview,2,IQ Tests,5,Islamic Studies,10,Mathematics,8,Mathematics 10th,7,Mathematics 9th,18,PAF Cadet College Lower Topa,10,Pakistan Studies,5,Past Papers,9,Physics 10th,9,Physics 9th,9,Programming,1,Student Counseling,8,Urdu,6,Verbal Aptitude Tests,2,Verbal Reasoning Tests,2,Video,5,
ltr
item
Enter To Study: Everyday Science - Chemistry
Everyday Science - Chemistry
Read Everyday Science - Chemistry Information for PPSC, SPSC, BPSC, KPPSC, NTS, PTS, OTS and other quiz competitions.
Enter To Study
https://www.entertostudy.com/2018/12/everyday-science-chemistry.html
https://www.entertostudy.com/
https://www.entertostudy.com/
https://www.entertostudy.com/2018/12/everyday-science-chemistry.html
true
1254132765608278196
UTF-8
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS PREMIUM CONTENT IS LOCKED STEP 1: Share. STEP 2: Click the link you shared to unlock Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy