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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: - Which of the following is expected to form colourless complex
- A zinc rod is place in 0.095 M solution of zinc sulphate at 298 K, the potential
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Topics: Aldehydes Ketones and Carboxylic Acid
(89)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following is expected to form colourless complex
- A zinc rod is place in 0.095 M solution of zinc sulphate at 298 K, the potential
- What is the value of carbonate hardness of water sample if 100 mL of it took
- In the titration of strong acid and weak base, the indicator used is
- An example for a double salt 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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