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MCQs

Total Questions : 212 | Page 19 of 22 pages
Question 181. In Universal indicators, a pH of 7 is shown with
  1.    yellow color
  2.    green color
  3.    blue color
  4.    pink color
 Discuss Question
Answer: Option B. -> green color
Answer: (b).green color
Question 182. An alkali (OH-) is a
  1.    water soluble base
  2.    water insoluble base
  3.    oil soluble base
  4.    oil insoluble base
 Discuss Question
Answer: Option A. -> water soluble base
Answer: (a).water soluble base
Question 183. Chlorine atoms are regarded as electron
  1.    withdrawing group
  2.    acceptor
  3.    donators
  4.    none of above
 Discuss Question
Answer: Option A. -> withdrawing group
Answer: (a).withdrawing group
Question 184. The reaction of Acyl chlorides with alcohols and phenols will give
  1.    esters
  2.    ketones
  3.    aldehydes
  4.    haloalkanes
 Discuss Question
Answer: Option A. -> esters
Answer: (a).esters
Question 185. The carboxylic acids are generally
  1.    weak acids
  2.    weak bases
  3.    strong acids
  4.    amphoteric
 Discuss Question
Answer: Option A. -> weak acids
Answer: (a).weak acids
Question 186. Carboxylates are salts produced during reactions of
  1.    carboxylic acids
  2.    acyl compounds
  3.    alcohols
  4.    alkenes
 Discuss Question
Answer: Option A. -> carboxylic acids
Answer: (a).carboxylic acids
Question 187. Carboxylic acids produce salt plus water by reacting with
  1.    acids
  2.    bases
  3.    alkalis
  4.    water
 Discuss Question
Answer: Option B. -> bases
Answer: (b).bases
Question 188. Acyl chloride which does not undergo hydrolysis at all is
  1.    chlorobenzene
  2.    iodobenzene
  3.    fluorobenzene
  4.    none of above
 Discuss Question
Answer: Option A. -> chlorobenzene
Answer: (a).chlorobenzene
Question 189. Acyl chlorides (-COCl) quickly undergoes hydrolysis at room temperature with
  1.    strong alkali
  2.    water
  3.    strong base
  4.    strong acid
 Discuss Question
Answer: Option B. -> water
Answer: (b).water
Question 190. Litmus is used to test either the substance is
  1.    acidic only
  2.    alkaline only
  3.    liquid
  4.    acid and alkaline
 Discuss Question
Answer: Option D. -> acid and alkaline
Answer: (d).acid and alkaline

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