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What simple chemical test can confirm the presence of an -OH group in alcohols with the molecular formula C4H10O?

Chemistry

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Step 1: Solve question 4.a.
a asks for a simple chemical test to confirm the presence of the -OH group in 4 compounds of molecular formula C4_4H10_{10}O. These compounds are alcohols.

A simple test for the presence of an alcohol (-OH) group is the reaction with an active metal like sodium. Alcohols react with sodium metal to produce hydrogen gas, while ethers (which are isomers of C4_4H10_{10}O but do not contain an -OH group) do not react.

  • Test: Add a small piece of sodium metal to the compound.
  • Observation: If an -OH group is present, effervescence (fizzing) due to the evolution of
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