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Organic Chemistry

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Aldehydes and Ketones

Question
10 out of 16
 

Chromic acid test can be used for the identification of:

A Aldehydes and ketones
B Aldehydes only
C Ketones only
D Carboxylic acids only


Ans. B Chromic acid test is a qualitative test that can be used to confirm whether a given unknown compound is an aldehyde or not. Even though aldehydes give a positive response to this test, ketones do not. A sample reaction is shown below:

image\Solutions ch 22, Q 10.png

A green precipitate confirms a positive test.

Aldehydes and Ketones Flashcard List

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