Millionaire Mode

Occurrence of hydrogen - class-XI

Question 1 of 17

In which of the following reactions hydrogen gas is liberated ?

  1. $C{H _3}COOH + Na$
  2. $C{H _3}COOH + NaHC{O _3}$
  3. $C{H _3}COOH + NaOH$
  4. $C{H _3}COOH + {H _2}O.$

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