Organic Chemistry Reactions Quiz

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Which reagent can be used to reduce aldehydes and ketones to alcohols?

NaBH4 (correct)

Grignard reagents

LAIH4

Concentrated alkali

What reaction do aldehydes without alpha-hydrogens undergo in the presence of concentrated alkali?

Aldol condensation

Cannizzaro reaction (correct)

Wolff-Kishner reduction

Grignard reaction

How are carboxylic acids prepared from Grignard reagents?

By Clemmensen reduction

By oxidation with Tollens' reagent

By treatment with carbon dioxide (correct)

By hydrolysis of nitriles

Which reagent can be used to distinguish aldehydes from ketones based on oxidation reactions?

Tollens' reagent Signup and view all the answers

What type of reaction leads to the formation of a-hydroxyaldehydes and a-hydroxyketones?

Aldol condensation Signup and view all the answers

What is the general name for the reaction that forms a-hydroxyaldehydes and a-hydroxyketones?

Aldol condensation Signup and view all the answers

What reaction do aldehydes without alpha-hydrogens undergo in the presence of concentrated alkali?

Cannizzaro reaction Signup and view all the answers

How can the carbonyl group of aldehydes and ketones be reduced to a methylene group?

By Clemmensen reduction or Wolff-Kishner reduction Signup and view all the answers

What are the mild oxidizing reagents used to oxidize aldehydes to carboxylic acids?

Tollens' reagent and Fehling's reagent Signup and view all the answers

What is the general name for the reagents used to reduce aldehydes and ketones to alcohols?

NaBH4, LAH, or catalytic hydrogenation Signup and view all the answers

Organic Chemistry Reactions Quiz

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Questions and Answers

Which reagent can be used to reduce aldehydes and ketones to alcohols?

What reaction do aldehydes without alpha-hydrogens undergo in the presence of concentrated alkali?

How are carboxylic acids prepared from Grignard reagents?

Which reagent can be used to distinguish aldehydes from ketones based on oxidation reactions?

What type of reaction leads to the formation of a-hydroxyaldehydes and a-hydroxyketones?

What is the general name for the reaction that forms a-hydroxyaldehydes and a-hydroxyketones?

What reaction do aldehydes without alpha-hydrogens undergo in the presence of concentrated alkali?

How can the carbonyl group of aldehydes and ketones be reduced to a methylene group?

What are the mild oxidizing reagents used to oxidize aldehydes to carboxylic acids?

What is the general name for the reagents used to reduce aldehydes and ketones to alcohols?

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