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Which of the following on addition of water in presence of acid gives a ketone
Options
(a) Propene
(b) Butene-2
(c) Propyne
(d) None of these
Correct Answer:
Propyne
Explanation:
Alkynes on hydration in presence of dilute H₂SO₄ and HgSO₄ as catalyst produces aldehydes and ketones. Water adds to form unstable enol intermediates which undergo rearrangment to form aldehyde or ketones. Acetylene on hydration gives aldehydes while all other alkynes produce ketones,
Related Questions: - The hybridisation of C₂H₂ is
- The equilibrium weight of MnSO₄ is M/2 when it changes into
- Which of the following contains amino group
- The hardest substance amongst the following is
- The correct order in which the O–O bond length increases in the following is
Topics: Aldehydes Ketones and Carboxylic Acid
(89)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The hybridisation of C₂H₂ is
- The equilibrium weight of MnSO₄ is M/2 when it changes into
- Which of the following contains amino group
- The hardest substance amongst the following is
- The correct order in which the O–O bond length increases in the following is
Topics: Aldehydes Ketones and Carboxylic Acid (89)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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