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Non-Metals and Their Compounds

312 MCQ questions with answers and explanations · page 8 of 13

Test yourself▶ 25 question test▶ 50 question test

Q176. The use of which of the following results in depletion of the ozone layer of the atmosphere?

  1. Agreenhouse gas
  2. BHydro Fluoro Carbon
  3. Cchlorofluorocarbons
  4. Dliquefied petroleum gas
Show answer & explanation

Answer: C) chlorofluorocarbons

Q177. Which of the following gases is responsible for the depletion of the ozone layer?

  1. Anitrous oxide
  2. BChlorofluorocarbons
  3. Ccarbon dioxide
  4. Dcarbon monoxide
Show answer & explanation

Answer: B) Chlorofluorocarbons

Q178. Supersonic aircraft emit the following substances into the stratosphere?

  1. ANOx
  2. BSOx
  3. CCO²
  4. DH²
Show answer & explanation

Answer: A) NOx

Q179. Which gas in the atmosphere absorbs ultraviolet rays?

  1. Aozone
  2. Bmethane
  3. Cnitrogen
  4. Dhelium
Show answer & explanation

Answer: A) ozone

Q180. Ozone protects the biosphere—

  1. Afrom infrared rays
  2. Bfrom ultraviolet rays
  3. Cfrom x-rays
  4. Dfrom y-rays
Show answer & explanation

Answer: B) from ultraviolet rays

Q181. What kind of smell does ozone gas have?

  1. Alike rotten eggs
  2. Blike rotten meat
  3. Clike rotten fish
  4. Dlike mustard oil
Show answer & explanation

Answer: C) like rotten fish

Q182. The molecular formula of sulphur is_

  1. AS
  2. BS²
  3. CS⁴
  4. DS⁸
Show answer & explanation

Answer: D) S⁸

Q183. How many sulfur atoms join together to form a sulfur ring-like structure?

  1. A4
  2. B6
  3. C6
  4. D5
Show answer & explanation

Answer: C) 6

Q184. The enemy element of copper is_

  1. ASulphur
  2. BCarbon
  3. Chydrogen
  4. Dnitrogen
Show answer & explanation

Answer: A) Sulphur

Q185. What is the process of improving the quality of rubber by heating it with sulphur called?

  1. Anitrous oxide
  2. BChlorofluorocarbons
  3. Ccarbon dioxide
  4. Dcarbon monoxide
Show answer & explanation

Answer: A) nitrous oxide

Q186. The element used to vulcanize wood is ____

  1. ASulphur
  2. Bbromine
  3. CSilicon
  4. DPhosphorus
Show answer & explanation

Answer: A) Sulphur

Q187. Which of the following is added to rubber to make it stronger and more elastic?

  1. ASulphur
  2. Bchlorine
  3. CFluorine
  4. Dbromine
Show answer & explanation

Answer: A) Sulphur

Q188. On adding boiling sulphur to cold water, we get ____

  1. APrismatic sulfur
  2. BMilk of sulfur
  3. Cmonoclinic sulphur
  4. Dplastic odorant
Show answer & explanation

Answer: D) plastic odorant

Q189. Which gas burns itself but does not help in burning and which smells like rotten eggs?

  1. Anitrogen
  2. Boxygen
  3. Ccarbon dioxide
  4. Dhydrogen sulfide
Show answer & explanation

Answer: D) hydrogen sulfide

Q190. The colour of brass turns pale in air due to the presence of which of the following?

  1. Aoxygen
  2. Bhydrogen sulfide
  3. Ccarbon dioxide
  4. Dnitrogen
Show answer & explanation

Answer: B) hydrogen sulfide

Q191. Passing hydrogen sulphide gas through an acidic solution of potassium dichloride gives it a horse colour.

  1. Apink
  2. BGreen
  3. CBlue
  4. Dorange
Show answer & explanation

Answer: B) Green

Q192. Which of the following is/are responsible for acid rain?

  1. Acarbon dioxide
  2. Bcarbon monoxide
  3. CPropane
  4. DN²O and SO²
Show answer & explanation

Answer: D) N²O and SO²

Q193. Which of the following causes acid rain in industrial areas?

  1. ACO²
  2. BCO
  3. CCH⁴
  4. DSO²
Show answer & explanation

Answer: D) SO²

Q194. Due to excess of which in the air, the leaves of the trees turn black and fall?

  1. ACO²
  2. BSo²
  3. CCO
  4. DNH³
Show answer & explanation

Answer: B) So²

Q195. Which of the following gases is consistently seen in the greatest quantity in volcanic eruptions?

  1. Awater vapor
  2. Bcarbon dioxide
  3. Csulfur dioxide
  4. Dhydrogen sulfide
Show answer & explanation

Answer: A) water vapor

Q196. On passing sulphur dioxide gas through acidified potassium dichromate solution, the colour of the solution becomes ____

  1. AYellow
  2. BGreen
  3. CPurple
  4. Dpink
Show answer & explanation

Answer: B) Green

Q197. Concentrated sulphuric acid is called—

  1. AMuriatic acid
  2. BCaro acid
  3. Coil of vitriol
  4. DOleum
Show answer & explanation

Answer: C) oil of vitriol

Q198. Which of the following is used as electrolyte in a dry cell?

  1. AAmmonium chloride and zinc chloride
  2. BAmmonium chloride and calcium chloride
  3. CMagnesium Chloride and Zinc Chloride
  4. Dsodium chloride and zinc chloride
Show answer & explanation

Answer: C) Magnesium Chloride and Zinc Chloride

Q199. The 'King of Chemicals' is called—

  1. Asulfurous acid
  2. Bsulfuric acid
  3. Cnitric acid
  4. Dnitrous acid
Show answer & explanation

Answer: B) sulfuric acid

Q200. What is the chemical name of 'Oil of Vitriol'?

  1. Asulfuric acid
  2. Bcalcium hydroxide
  3. Csodium chloride
  4. Dmethyl alcohol
Show answer & explanation

Answer: A) sulfuric acid

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