| ⇦ | 
| ⇨ |
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 hardest substance amongst the following is
- K₂Cr₂O₇ on heating with aqueous NaOH gives
- Bromine water reacts with SO₂ to form
- Oxidation state of iron in [Fe(H₂O)₅NO]SO₄ is
- Which one of the alkali metals, forms only, the normal oxide, M₂O on heating
Topics: Aldehydes Ketones and Carboxylic Acid
(89)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The hardest substance amongst the following is
- K₂Cr₂O₇ on heating with aqueous NaOH gives
- Bromine water reacts with SO₂ to form
- Oxidation state of iron in [Fe(H₂O)₅NO]SO₄ is
- Which one of the alkali metals, forms only, the normal oxide, M₂O on heating
Topics: Aldehydes Ketones and Carboxylic Acid (89)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply