Action of Sodium Bisulphite on Aldehydes and Ketone

TL;DR

This video discusses the chemical properties of aldehydes and ketones, focusing on their reactions with sodium bisulfite.

Transcript

hello friends in the previous topic we have discussed about the chemical preparation of aldehyde and ketone and now in this topic let me talk about the chemical properties of le hare and ketone so in this topic we are going to talk about the action of sodium bisulfite on the LD head and the action of sodium bisulfite on the ketone so what are the g... Read More

Key Insights

• 💁 Aldehydes react with sodium bisulfite to form hydroxy sodium salts of sulphonic acids.
• 💁 Ketones also react with sodium bisulfite, forming hydroxy sulphonic acids.
• ❓ The reactions of both aldehydes and ketones with sodium bisulfite are reversible.

Questions & Answers

Q: What is the product formed when an aldehyde reacts with sodium bisulfite?

When an aldehyde reacts with sodium bisulfite, a hydroxy sodium salt of sulphonic acid is formed. The oxygen in sodium bisulfite attaches to the hydrogen, while the rest of the SO3 group attaches to the carbon atom of the aldehyde.

Q: Can you give an example of the reaction of an aldehyde with sodium bisulfite?

An example is acetaldehyde (CH3CHO) reacting with sodium bisulfite. The product obtained is a hydroxy sodium salt of ethane sulphonic acid, where the OH group is attached to the carbon atom.

Q: What happens when a ketone reacts with sodium bisulfite?

When a ketone reacts with sodium bisulfite, a hydroxy sulphonic acid is formed. The H+ attaches to the oxygen, while the rest of the SO3 group attaches to the carbon atom of the ketone.

Q: Can you provide an example of the reaction of a ketone with sodium bisulfite?

An example is acetone (CH3COCH3) reacting with sodium bisulfite. The product obtained is a 2-hydroxy propane sulphonic acid, where the sulphonic group is attached to the second carbon atom.

Summary & Key Takeaways

• The video explains the reaction of aldehydes with sodium bisulfite, resulting in the formation of a hydroxy sodium salt of sulphonic acid.

• An example is given using acetaldehyde, where it reacts with sodium bisulfite to form a sodium salt of ethane sulphonic acid.

• The video also discusses the reaction of ketones with sodium bisulfite, leading to the formation of a hydroxy sulphonic acid.

• An example is provided using acetone, where it reacts with sodium bisulfite to form a 2-hydroxy propane sulphonic acid.