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Non-Metals and Their Compounds

312 MCQ questions with answers and explanations · page 4 of 13

Test yourself▶ 25 question test▶ 50 question test

Q76. Which one of the following types of coal contains a higher percentage of carbon than the rest?

  1. Abituminous
  2. BLignite
  3. Cpeat
  4. DAnthracite
Show answer & explanation

Answer: D) Anthracite

Q77. Which of the following is called 'brown coal'?

  1. AAnthracite
  2. Bbituminous
  3. CCoke
  4. DLignite
Show answer & explanation

Answer: D) Lignite

Q78. It is known as soft coal_

  1. Apeat
  2. BLignite
  3. CAnthracite
  4. Dbituminous
Show answer & explanation

Answer: D) bituminous

Q79. The initial stage of coal formation is ____

  1. Apeat
  2. BLignite
  3. Cbituminous
  4. DAnthracite
Show answer & explanation

Answer: A) peat

Q80. The common type of coal is—

  1. AAnthracite
  2. BLignite
  3. Cbituminous
  4. Dpeat
Show answer & explanation

Answer: C) bituminous

Q81. High quality coal is ____

  1. Apeat
  2. BLignite
  3. CAnthracite
  4. Dbituminous
Show answer & explanation

Answer: D) bituminous

Q82. Which of the following is not a variety of coal?

  1. ABitumen
  2. BLignite
  3. Cpeat
  4. DDolomite
Show answer & explanation

Answer: D) Dolomite

Q83. Which of the following air pollutants is most harmful?

  1. Aozone
  2. Bhydrogen sulfide
  3. Ccarbon dioxide
  4. Dcarbon monoxide
Show answer & explanation

Answer: D) carbon monoxide

Q84. The polluting gas emitted from vehicles is mainly ______.

  1. Acarbon dioxide
  2. Bcarbon monoxide
  3. CMarsh gas
  4. Dnitrogen oxide
Show answer & explanation

Answer: B) carbon monoxide

Q85. Which of the following gases pollutes the air the most?

  1. Acarbon dioxide
  2. Bcarbon monoxide
  3. Csulfur dioxide
  4. Dhydrocarbons
Show answer & explanation

Answer: B) carbon monoxide

Q86. Which of the following gases reduces the oxygen carrying capacity of the blood?

  1. Anitrous oxide
  2. Bcarbon monoxide
  3. Ccarbon dioxide
  4. Dnitric oxide
Show answer & explanation

Answer: B) carbon monoxide

Q87. The gas which burns with a blue flame is ____

  1. Ahydrogen
  2. Bnitrogen
  3. Ccarbon monoxide
  4. Dcarbon dioxide
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Answer: C) carbon monoxide

Q88. Which of the following air pollutants dissolves in the haemoglobin of the blood more readily than oxygen?

  1. APAN
  2. Bcarbon dioxide
  3. Ccarbon monoxide
  4. Dozone
Show answer & explanation

Answer: C) carbon monoxide

Q89. The amount of carbon dioxide in atmospheric air is ____

  1. A0.00003
  2. B0.0003
  3. C0.0013
  4. D0.3
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Answer: B) 0.0003

Q90. Which of the following gases is essential for photosynthesis?

  1. Acarbon monoxide
  2. Bcarbon dioxide
  3. Cnitrogen
  4. Doxygen
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Answer: B) carbon dioxide

Q91. Which of the following gases contributes the most to global warming?

  1. Acarbon dioxide
  2. Bchlorofluorocarbons
  3. Cnitrous oxide
  4. Dmethane
Show answer & explanation

Answer: A) carbon dioxide

Q92. Which of the following gases is used by plants in photosynthesis?

  1. Asulfur dioxide
  2. Bcarbon dioxide
  3. Cchlorine
  4. Dammonia
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Answer: B) carbon dioxide

Q93. It is not advisable to sleep under a tree at night, because then it will cause ___

  1. Acarbon dioxide is released
  2. Bcarbon monoxide is released
  3. CLess oxygen is released
  4. Dmore oxygen is released
Show answer & explanation

Answer: A) carbon dioxide is released

Q94. Carbon dioxide gas reacts with water to form ______.

  1. Acarbolic acid
  2. Bcarbonic acid
  3. Ccarbomic acid
  4. Dsulfurous acid
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Answer: B) carbonic acid

Q95. The gas used to extinguish fire is ____

  1. ANeon
  2. Bnitrogen
  3. Ccarbon dioxide
  4. Dcarbon monoxide
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Answer: C) carbon dioxide

Q96. Due to whose presence lime water turns milky when kept in air?

  1. Acarbon dioxide
  2. Bnitrogen
  3. Coxygen
  4. Dsulfur dioxide
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Answer: A) carbon dioxide

Q97. Which gas is added to beer before storing it?

  1. ACl²
  2. BC²
  3. CCO²
  4. DSo²
Show answer & explanation

Answer: C) CO²

Q98. Which of the following gases is present in soft drinks under pressure?

  1. ACO²
  2. BCO
  3. CN²O
  4. DN²
Show answer & explanation

Answer: A) CO²

Q99. The gas used in soda water is_

  1. AO²
  2. BNH³
  3. CCO²
  4. DSo²
Show answer & explanation

Answer: C) CO²

Q100. What is the more common name for solid carbon dioxide?

  1. Amercury
  2. BPotash
  3. Cdry ice
  4. DIpsum
Show answer & explanation

Answer: C) dry ice

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