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(B, D) $1$. Hydration of propene $(CH_3-CH=CH_2)$ with dilute $H_2SO_4$ follows Markovnikov's rule to give propan$-2-$ol (secondary alcohol).$2$. Hydr

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Catalytic reduction of butanal

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(B, D) $1$. Hydration of propene $(CH_3-CH=CH_2)$ with dilute $H_2SO_4$ follows Markovnikov's rule to give propan$-2-$ol (secondary alcohol).$2$. Hydroboration-oxidation of propene $(CH_3-CH=CH_2)$ with $BH_3$ followed by $H_2O_2/OH^-$ follows anti-Markovnikov's rule to give propan$-1-$ol (primary alcohol).$3$. Reaction of propanone $(CH_3COCH_3)$ with $CH_3MgBr$ followed by hydrolysis gives $2-$methylpropan$-2-$ol (tertiary alcohol).$4$. Catalytic reduction of butanal $(CH_3CH_2CH_2CHO)$ with $H_2/Ni$ gives butan$-1-$ol (primary alcohol).Both options $B$ and $D$ produce primary alcohols. However,in standard multiple-choice contexts where only one is expected,both are chemically valid. Given the phrasing,both are correct.

Column-$I$	Column-$II$
$(i)$ $2-$methylphenol	$(a)$ Hydroquinone
$(ii)$ Benzene$-1,2-$diol	$(b)$ Phenetole
$(iii)$ Benzene$-1,3-$diol	$(c)$ Catechol
$(iv)$ Benzene$-1,4-$diol	$(d)$ $o$-Cresol
$(v)$ Methoxybenzene	$(e)$ Quinone
$(vi)$ Ethoxybenzene	$(f)$ Resorcinol
	$(g)$ Anisole

Which of the following reactions will produce a primary alcohol?

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