In which of the following reactions will $CO_2$ gas $NOT$ be released?

  • A
    $CH_2=CH-CH_3 \xrightarrow{O_3/H_2O} CH_3CHO + HCHO + H_2O_2$
  • B
    Methylenecyclohexane $\xrightarrow{\text{Warm } KMnO_4}$ Cyclohexanone + $CO_2$
  • C
    Allylcyclohexane $\xrightarrow{O_3/Zn} \text{Cyclohexylacetaldehyde} + HCHO$
  • D
    $CH_3-C \equiv CH \xrightarrow[(ii) H_2O]{(i) KMnO_4 + KOH} CH_3COOH + CO_2$

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