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JEE Main levelOne or more correct optionsDifficulty 2 of 3el187

Which statements about saponification are correct?

  1. AA fat is a triester of glycerol with long-chain fatty acids.
  2. BOne mole of triglyceride consumes three moles of NaOH.
  3. CUsing KOH instead of NaOH gives a potassium soap.
  4. DThe reaction needs conc. as the reagent.

Answer: A, B, C

A triglyceride has three ester groups, each hydrolysed by one hydroxide, so 3 mol of base are needed per mole of fat. With KOH the soap is the potassium salt. The reagent is a strong alkali, not sulphuric acid. Statements 1, 2 and 4 are correct.
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