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Which of the following is known as Jones reagent?

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in Chemistry – Class 12 by (188k points)
Which of the following is known as Jones reagent?

(a) KMnO4 in alkaline medium

(b) CrO3 in H2SO4

(c) K2Cr2O7 in acidic medium

(d) KMnO4 in H2SO4

I got this question during an online interview.

My enquiry is from Methods of Carboxylic Acids Preparation topic in portion Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

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Right choice is (b) CrO3 in H2SO4

The explanation is: Chromium trioxide in an aqueous solution with sulphuric acid in known as Jones reagent. It Is an important compound in the preparation of carboxylic acids from alcohols.

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