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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: - ΔG = ΔH – TΔS was given by
- Which of the following does not react with I₂ and NaOH
- Identify the correct statement:
- Molecular mass of a compound having empirical formula C₂H₅O is 90.
- Acetic acid is weak acid than sulphuric acid because
Topics: Aldehydes Ketones and Carboxylic Acid
(89)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- ΔG = ΔH – TΔS was given by
- Which of the following does not react with I₂ and NaOH
- Identify the correct statement:
- Molecular mass of a compound having empirical formula C₂H₅O is 90.
- Acetic acid is weak acid than sulphuric acid because
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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