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Free download in PDF Organic Chemistry Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like UPSC, NDA, SSC etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
Which of the following is true about transesterification?
[A]
exchanging the organic alkyl group of an ester with the organic group alkyl of an alcohol
[B]
exchanging the organic alkyl group of an alcohol with the organic group alkyl of an ester
[C]
exchanging the organic alkyl group of an ester with the organic group alkyl of an alkane
[D]
exchanging the organic alkyl group of an ester with the organic group alkyl of an ether
Answer: exchanging the organic alkyl group of an ester with the organic group alkyl of an alcohol
(2)
What is the geometry of the intermediate formed in the mechanism of transesterification?
[A]
Octahedral
[B]
Square planner
[C]
Tetrahedral
[D]
Square bipyramidal
(3)
What chemical reaction makes biodiesel?
[A]
Transesterification
[B]
Sublimation
[C]
Polymerization
[D]
Fermentation
Answer: Transesterification
(4)
Polyethylene terephthalate is prepared by a transesterification reaction.
(5)
What type of solution is used in transesterification for the determination of fatty acid compositions?
[A]
Methanol in NaOH
[B]
Methanol in NaCl
[C]
Methanol in KOH
[D]
Methanol in H2O
(6)
Transesterification reaction is an irreversible reaction.
(7)
Which of the following is the product formed when methyl ethanoate and ethanol in presence of hydrochloric acid?
[A]
Ethyl ethanoate
[B]
Methyl ethanoate
[C]
Ethyl propanoate
[D]
Propyl ethanoate
(8)
Which of the following is the product formed when alkylene carbonate and alcohol in presence of hydrochloric acid?
[A]
Dialkyl carbonate
[B]
Methyl ethanoate
[C]
Alkyl carbonate
[D]
Propyl ethanoate
Answer: Dialkyl carbonate
(9)
Which of the following is the product formed when methyl propanoate and ethanol in presence of hydrochloric acid?
[A]
Ethyl ethanoate
[B]
Methyl ethanoate
[C]
Ethyl propanoate
[D]
Propyl ethanoate
(10)
Which of the following is the product formed when butyl acetate and ethanol in presence of hydrochloric acid?
[A]
Ethyl ethanoate
[B]
Methyl acetate
[C]
Ethyl acetate
[D]
Propyl ethanoate
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