Advertisement Remove all ads

An Organic Compound a (Molecular Formula C2h4o2) Reacts with Na Metal to Form a Compound B and Evolves a Gas Which Burns with a Pop Sound. Compound a on Treatment with an Alcohol C in the Presence of a Little of Concentrated Sulphuric Acid Forms a Sweet-smelling Compound D (Molecular Formula C3h6o2). Compound D on Treatment with Naoh Solution Gives Back B and C. Identify A, B, C and - Science

An organic compound A (molecular formula C2H4O2) reacts with Na metal to form a compound B and evolves a gas which burns with a pop sound. Compound A on treatment with an alcohol C in the presence of a little of concentrated sulphuric acid forms a sweet-smelling compound D (molecular formula C3H6O2). Compound D on treatment with NaOH solution gives back B and C. Identify A, B, C and 

Advertisement Remove all ads

Solution

The organic compound, A, with the molecular formula C2H4O2 is ethanoic acid (CH3COOH), as it evolves hydrogen with a pop sound on reacting with sodium.

When ethanoic acid reacts with sodium, a compound B called the sodium ethanoate (CH3COONa) is formed.
The alcohol, C, is methanol (CH3OH) which is treated with ethanoic acid in the presence of concentrated sulphuric acid to form a compound D.
The sweet-smelling compound D is methyl ethanoate (CH3COOCH3).
The chemical equation for the above stated reaction is as follows:
CH3OH + CH3COOH → CH3COOCH3 + H2O
When ethanoic acid reacts with alcohol in the presence of concentrated sulphuric acid, a sweet-smelling cmpound, ester is formed. Methyl ethanoate is a carboxylate ester, which on reaction with sodium hydroxide gives back methanol and Sodium ethanoate.
The chemical equation is as follows:
CH3COOCH3 + NaOH →  CH3COONa  + CH3OH

Concept: Ethanoic Acid
  Is there an error in this question or solution?
Advertisement Remove all ads

APPEARS IN

Lakhmir Singh Class 10 Chemistry (Science)
Chapter 4 Carbon And Its Compounds
Q 73 | Page 266
Advertisement Remove all ads

Video TutorialsVIEW ALL [2]

Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×