Match the reagents required for the given reactions: I. Oxidation of primary alcohols to (p) NaBH_4 aldehydes II. Butan-2-one to Butan-2-ol (q) 85%…

Match the reagents required for the given reactions : I. Oxidation of primary alcohols to (p) $\displaystyle \mathrm{NaBH}_{4}$ aldehydes II. Butan-$\displaystyle 2$-one to Butan-$\displaystyle 2$-ol (q) $\displaystyle 85$% phosphoric acid at $\displaystyle 440$ K III. Bromination of Phenol to $\displaystyle 2$, $\displaystyle 4$, $\displaystyle 6$- (r) PCC Tribromophenol IV. Dehydration of propan-$\displaystyle 2$-ol to (s) Bromine water propene