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MCQs

Total Questions : 212 | Page 6 of 22 pages
Question 51. For the synthesis of carboxylic acid, the intermediate product needed is
  1.    Acyl chloride
  2.    aryls
  3.    benzene
  4.    carboxylic acid
 Discuss Question
Answer: Option A. -> Acyl chloride
Answer: (a).Acyl chloride
Question 52. Carboxylic acids are high/very
  1.    unreactive
  2.    reactive
  3.    easily made
  4.    soft
 Discuss Question
Answer: Option A. -> unreactive
Answer: (a).unreactive
Question 53. Acyl chlorides are highly
  1.    unreactive
  2.    reactive
  3.    stable
  4.    none of above
 Discuss Question
Answer: Option B. -> reactive
Answer: (b).reactive
Question 54. CH₃COCl is the structural formula for
  1.    ethanoic acid
  2.    Ethanoyl chloride
  3.    ethanal chloride
  4.    ethanol
 Discuss Question
Answer: Option B. -> Ethanoyl chloride
Answer: (b).Ethanoyl chloride
Question 55. Reaction of amines with Acyl chlorides will give off organic product as
  1.    unsubstituted amide
  2.    substituted amide
  3.    added amide
  4.    subtracted hydrogen
 Discuss Question
Answer: Option B. -> substituted amide
Answer: (b).substituted amide
Question 56. The Acyl chloride react with nucleophile breaking C-Cl bond producing white fumes of
  1.    hydrogen chloride
  2.    carbon chloride
  3.    chlorine gas (Cl₂)
  4.    hydrogen gas (H₂)
 Discuss Question
Answer: Option A. -> hydrogen chloride
Answer: (a).hydrogen chloride
Question 57. A reactive organic compound related to a carboxylic acid, with OH⁻ group, replaced by a Cl atom is known as
  1.    Acyl chloride
  2.    aryls
  3.    benzene
  4.    carboxylic acid
 Discuss Question
Answer: Option A. -> Acyl chloride
Answer: (a).Acyl chloride
Question 58. What is true about phenol and carboxylic acids?
  1.    they do not react
  2.    they make acyl chloride
  3.    they make phenyl ester
  4.    they make phenyl ethers
 Discuss Question
Answer: Option A. -> they do not react
Answer: (a).they do not react
Question 59. Water reacts with Acyl chlorides in hydrolysis produces
  1.    carboxylic acids only
  2.    HCl only
  3.    H₂SO₄
  4.    carboxylic acids and HCl
 Discuss Question
Answer: Option D. -> carboxylic acids and HCl
Answer: (d).carboxylic acids and HCl
Question 60. Lone pair of an electron to attack carbonyl carbon atom in Acyl chlorides is provided by
  1.    amides
  2.    amines
  3.    ammonia
  4.    nitrogen
 Discuss Question
Answer: Option B. -> amines
Answer: (b).amines

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