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Q. Propene on reaction with each of the reagents given in column I gives products given in column II. Match the column and select the correct answer using the code given below:
Column I Column II
(A) $KMnO_4/H^+$ (1) Propan-2-ol
(B) $KMnO_4/OH^-$ (2) Propan 1, 2,diol
(C) $H_2O/H^+$ (3) Acetic acid and $CO_{2}$
(D) $O_3/Zn +H_2O$ (4) Acetaldehyde + formaldehyde

Hydrocarbons

Solution:

(a) $\underset{\text{propene}}{CH_3CH} = CH_{2} CH_2 \xrightarrow[\text{(Oxidation)}]{KMnO_4/H^+}\underset{\text{Acetic acid}}{CH_3COOH} + CO_2$

(b) $\underset{\text{propene}}{CH_3CH} = CH_{2}CH_2 \xrightarrow[\text{(Hydroxylation)}]{KMnO_4/H^-}\underset{\text{propane- 1, 2-diol}}{CH_3COOH} - CH_2OH$

(c) $\underset{\text{propene}}{CH_3CH} = CH_{2}CH_2 \xrightarrow[\text{(Mark.addition)}]{H_O/H^+}\underset{\text{propan-2-ol}}{CH_3CHOH} - CH_3$

(d) $\underset{\text{Propene}}{CH_3CH = CH_2} \xrightarrow[(ii) Zn + H_2O \text{(Reductive ozonolysis)}]{(i)O_3}$

$\underset{\text{Acetaldehyde}}{CH_3 - CHO} + \underset{\text{Formaldehyde}}{O = CH_2}$