A strong base can abstract an $\alpha$-hydrogen from
A strong base can abstract an $\alpha$-hydrogen from
alkene
amine
ketone
alkane
Solution
Key Idea : The carbon which is more electrophilic in nature, loses an $\alpha-\mathrm{H}$ with a base more readily.
Among the given compounds, carbonyl carbon ($ > \mathrm{C}=\mathrm{O}$) ie, ketone is more electrophilic in nature, thus loses an $\alpha-\mathrm{H}$ with a base $e g$, in aldol condensation reaction $\alpha$-hydrogen atom of aldehyde or ketone is abstracted by a strong base.