An organic compound A on reaction with thionyl chloride, gives compound B. Compound B, reacts with sodium in dry ether as solvent, gives 2,3-dimethyl butane. Identify compound A.

Step-by-step solution

Compound B reacts with sodium in dry ether to give 2,3-dimethylbutane. This is a Wurtz reaction. 2R-Cl + 2Na dry ether R-R + 2NaCl Since the product R-R is 2,3-dimethylbutane, (CH₃)₂CH-CH(CH₃)₂ , the alkyl group R must be an isopropyl group, (CH₃)₂CH- . Therefore, compound B is isopropyl chloride, (CH₃)₂CH-Cl . Compound A reacts with thionyl chloride ( SOCl₂ ) to give compound B. This indicates that compound A is an alcohol. R-OH + SOCl₂ R-Cl + SO₂ + HCl Thus, compound A is isopropyl alcohol, (CH₃)₂CH-OH . Answer: