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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3hc181

In which of the following preparations is ethane formed as the alkane product?

  1. AElectrolysis of aqueous sodium acetate
  2. BReaction of with sodium in dry ether
  3. CHeating sodium propanoate with soda lime
  4. DHeating sodium acetate with soda lime

Answer: A, B, C

Kolbe electrolysis of acetate gives . Wurtz coupling of two methyl groups also gives ethane. Soda lime with removes one carbon to give . Sodium acetate with soda lime gives methane, so d is wrong.
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