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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: - What is the maximum number of electrons that can be associated with the following
- Which one of the following is an example of thermosetting polymer
- The inert gas abundantly found in atmosphere is
- The number of π-bond present in propyne is
- When x litres hydrogen and chlorine are mixed, moles of HCl is
Topics: Aldehydes Ketones and Carboxylic Acid
(89)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- What is the maximum number of electrons that can be associated with the following
- Which one of the following is an example of thermosetting polymer
- The inert gas abundantly found in atmosphere is
- The number of π-bond present in propyne is
- When x litres hydrogen and chlorine are mixed, moles of HCl 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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