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NEET levelSingle correct optionDifficulty 1 of 3hc002

Heating sodium propanoate, , with soda lime () gives mainly

  1. Aethane
  2. Bmethane
  3. Cpropane
  4. Dbutane

Answer: A

Soda-lime decarboxylation removes the carboxylate carbon as carbonate: . The alkane has one carbon fewer than the acid salt, so ethane forms.
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More questions on Alkanes: preparation (Wurtz, Kolbe, decarboxylation) and reactions