Chemistry Crash Course JEE Main>Chapter 2 - Aldehydes, Ketones and Carboxylic Acids>Level 2>Q 35

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Which of the following decolourises the colour of acidic ${KMnO}_{4}$ ?

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Important Questions on Aldehydes, Ketones and Carboxylic Acids

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Chemistry Crash Course JEE Main>Chapter 2 - Aldehydes, Ketones and Carboxylic Acids>Level 2>Q 36

Which is most reactive towards soda-lime decarboxylation ?

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Chemistry Crash Course JEE Main>Chapter 2 - Aldehydes, Ketones and Carboxylic Acids>Level 2>Q 37

A compound has vapour density

29

. On warming with a solution of iodine in alkali, it gives a yellow precipitate, the compound is :

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Chemistry Crash Course JEE Main>Chapter 2 - Aldehydes, Ketones and Carboxylic Acids>Level 2>Q 38

Question Image Reagent may be -

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Chemistry Crash Course JEE Main>Chapter 2 - Aldehydes, Ketones and Carboxylic Acids>Level 2>Q 39

Reaction by which benzaldehyde cannot be prepared:

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Chemistry Crash Course JEE Main>Chapter 2 - Aldehydes, Ketones and Carboxylic Acids>Level 2>Q 40

C_{2} H_{5} Br \overset{AgCN}{\to} P \overset{H_{3} O^{+}}{\to} HCOOH + Q;

Q

is:

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Chemistry Crash Course JEE Main>Chapter 2 - Aldehydes, Ketones and Carboxylic Acids>Level 2>Q 41

Which one of the following is correct?

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Chemistry Crash Course JEE Main>Chapter 2 - Aldehydes, Ketones and Carboxylic Acids>Level 2>Q 42

By which of the following reagents can the following conversion be effected ?

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Chemistry Crash Course JEE Main>Chapter 2 - Aldehydes, Ketones and Carboxylic Acids>Level 2>Q 43

The final product $(III)$ obtained in the reaction sequence.

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Product $III$ is :-