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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 normality of solution containing 31.5g of hydrated oxalic acid (H₂C₂O₄.2H₂O)
- Electronic configuration of deuterium atom is
- Which one of the following is produced when acetone is saturated with HCl gas
- A gas such as carbon monoxide would be most likely to obey the ideal gas law at
- Which of the following statements is not true about alcohols
Topics: Aldehydes Ketones and Carboxylic Acid
(89)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The normality of solution containing 31.5g of hydrated oxalic acid (H₂C₂O₄.2H₂O)
- Electronic configuration of deuterium atom is
- Which one of the following is produced when acetone is saturated with HCl gas
- A gas such as carbon monoxide would be most likely to obey the ideal gas law at
- Which of the following statements is not true about alcohols
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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