Grade 12Organic Chemistry

what is the use of 'cao' in decarboxylation reaction?

praneeth bonu

15 Years agoGrade 12

3 Answers

Aman Bansal

15 Years ago

Dear Praneeth,

odium salts of corboxylic acids on heating with soda lime (mixture of sodium hydroxide and calcium oxide) give

alkanes containing one carbon atom less than the corboxylic acid.This process of elimanation of carbon dioxide

from corboxylic acid is known as decorboxylation.

CH₃ COO^-Na⁺ +NaOH ---------------------> CH₄ +Na₂ CO₃

Best Of luck

Plz Approve the answer...!!!!

Cracking IIT just got more exciting,It’s not just all about getting assistance from IITians, alongside Target Achievement and Rewards play an important role. ASKIITIANS has it all for you, wherein you get assistance only from IITians for your preparation and winexciting gifts by answering queries in the discussion forums. Reward points 5 + 15 for all those who upload their pic and download the ASKIITIANS Toolbar, just a simple click here to download the toolbar….
So start the brain storming…. become a leader with Elite Expert League ASKIITIANS

Thanks
Aman Bansal
Askiitian Expert

Yuvika Saini

9 Years ago

1 . CaO permits the reaction to be carried out at a relatively higher temperature to ensure complete decarboxylation 2 . CaO keeps NaOH dry because it is quite hygroscopic in nature

Rushda Rashid Buddannavar

4 Years ago

It absorbs the Moisture of NaOH during the Reaction and keeps it dry .., So that effeciency of NaOH will increase and it can further proceed the reaction in a maximum effeciency..