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Organic Chemistry

243 MCQ questions with answers and explanations · page 5 of 10

Test yourself▶ 25 question test▶ 50 question test

Q101. Lucite, a poisonous gas used in warfare, is made from

  1. Afrom chlorine
  2. BFrom ammonia
  3. Cin acetylene
  4. Dfrom nitrobenzene
Show answer & explanation

Answer: C) in acetylene

Q102. The chemical name of 'Westron' is_

  1. Asodium acetate
  2. Bacetylene tetrachloride
  3. CChloraprene
  4. Dsodium bicarbonate
Show answer & explanation

Answer: B) acetylene tetrachloride

Q103. Calcium carbide (CaC) on treatment with water gives-

  1. Amethane
  2. BAthene
  3. CEthylene
  4. DAcetylene
Show answer & explanation

Answer: D) Acetylene

Q104. Where is chlorofluorocarbon mostly used?

  1. Ain myco ovens
  2. Bin solar heaters
  3. Cin washing machines
  4. Din refrigerators
Show answer & explanation

Answer: D) in refrigerators

Q105. Which of the following is a common refrigerant used in domestic use?

  1. ANeon
  2. Boxygen
  3. Cfree on
  4. DNone of these
Show answer & explanation

Answer: C) free on

Q106. The famous refrigerant 'Freon' is actually—

  1. Acalcium fluoride
  2. BFluorspar
  3. CHydrofoliacic acid
  4. Ddichlorodiphloge methane
Show answer & explanation

Answer: D) dichlorodiphloge methane

Q107. Which of the following gases is responsible for the depletion of the ozone layer

  1. Acarbon monoxide
  2. Bchlorofluorocarbons
  3. Ccarbon dioxide
  4. Dnitrous oxide
Show answer & explanation

Answer: B) chlorofluorocarbons

Q108. 'Trichloromethane' is the chemical name of which of the following?

  1. Asal ammoniac
  2. Bchloroform
  3. Cchlorofluorocarbons
  4. DIodoform
Show answer & explanation

Answer: B) chloroform

Q109. Which of the following statements is correct regarding 'chloroform'?

  1. ALiquid fuel codes: 1 and 2
  2. BAnesthetic 1 and 3
  3. CPhosgene produces 2 and 3
  4. DFirefighters 1 and 4
Show answer & explanation

Answer: C) Phosgene produces 2 and 3

Q110. What is another name for carbon tetrachloride?

  1. AMarsh gas
  2. Bmustard gas
  3. CPyrenees
  4. DPyrol
Show answer & explanation

Answer: C) Pyrenees

Q111. It is used to extinguish electrical fires.

  1. Apyrene fire extinguisher
  2. Bfoam fire extinguisher
  3. CWater fire extinguisher
  4. Dsoda acid fire extinguisher
Show answer & explanation

Answer: A) pyrene fire extinguisher

Q112. Which of the following solvents is used in dry washing of clothes?

  1. Achloroform
  2. BAcetone
  3. Cethyl alcohol
  4. Dcarbon tetrachloride
Show answer & explanation

Answer: D) carbon tetrachloride

Q113. Which is not an anesthetic agent used in surgical operations?

  1. Anitrous oxide
  2. BAcetone
  3. Cchloroform
  4. DYear
Show answer & explanation

Answer: B) Acetone

Q114. The constituent elements in alcohol are_

  1. AN, H and O
  2. BCH and O
  3. COC&N
  4. DH, Cl and O
Show answer & explanation

Answer: B) CH and O

Q115. Which of the following is also called 'wood sprint'?

  1. Amethyl alcohol
  2. Bethyl alcohol
  3. Cethylene glycol
  4. Dglycerol
Show answer & explanation

Answer: A) methyl alcohol

Q116. The chemical formula of methyl alcohol is ____

  1. ACH³ OH
  2. BC²H⁵OH
  3. CC³H⁷ OH
  4. DC⁴H¹⁰OH
Show answer & explanation

Answer: A) CH³ OH

Q117. Antifreeze is a mixture of_

  1. Aof acetic acid and water
  2. Bof formic acid and water
  3. Cof methyl alcohol and water
  4. Dof ethyl alcohol and water
Show answer & explanation

Answer: C) of methyl alcohol and water

Q118. It is soluble in water_

  1. Aethyl alcohol
  2. Bchloroform
  3. Ccarbon dioxide
  4. Dcarbon tetrachloride
Show answer & explanation

Answer: A) ethyl alcohol

Q119. It is present in wine_

  1. Aethyl alcohol
  2. Bmethyl alcohol
  3. Cacetic acid
  4. Dchloroform
Show answer & explanation

Answer: A) ethyl alcohol

Q120. Alcoholic beverages contain ____

  1. Abutyl alcohol
  2. Bmethyl alcohol
  3. Cethyl alcohol
  4. Dpropyl alcohol
Show answer & explanation

Answer: C) ethyl alcohol

Q121. Grain alcohol is known as_

  1. Amethyl alcohol
  2. Bethyl alcohol
  3. Cethylene glycol
  4. Dglycerol
Show answer & explanation

Answer: B) ethyl alcohol

Q122. Consuming ethyl alcohol in large quantities has adverse effects.

  1. Aon the kidneys
  2. Bon the lever
  3. Con the heart
  4. Don the intestine
Show answer & explanation

Answer: B) on the lever

Q123. In alcohol tragedies that result in blindness etc. the harmful substance is ____

  1. Aethyl alcohol
  2. Bmethyl alcohol
  3. Camyl alcohol
  4. Dbenzyl alcohol
Show answer & explanation

Answer: B) methyl alcohol

Q124. What is Denatured Spirit primarily used for?

  1. Aas a good fuel
  2. Bas a medicine
  3. Cas a solvent in making varnishes
  4. Das a raw material for making oil
Show answer & explanation

Answer: C) as a solvent in making varnishes

Q125. Power Alcohol is—

  1. Apotable ethyl alcohol
  2. Bpurified ethyl alcohol
  3. CEthyl alcohol used as fuel
  4. Dpurified methyl alcohol
Show answer & explanation

Answer: C) Ethyl alcohol used as fuel

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