In the given set of reactions, 2 – Bromopropane
AgCN−−−−−→alc./heatXLiA/H4−−−−−→Y
The IUPAC name of product ‘Y’ is
N-Methylopropanamine
N-Isopropylmethanamine
Butan-2-amine
N-Methylpropan-2-amine