Chemistry - Carbonyl compounds Question with Solution | TestHub

In the given reaction
${\text{CH}}_3\text{CHO}\underset{\left(\text{ii}\right){\text{H}}_{\text{3}}{\text{O}}^{+}}{\overset{\left(\text{i}\right)\text{HCN}/\text{Ca}{(\text{CN})}_2}{\to }}\left[\text{X}\right]$
[X] will be