# NEET Chemistry The s-Block Elements Questions Solved

Sodium looses its lustre on exposure to air due to formation of-

(A) NaOH and $N{a}_{2}C{O}_{3}$

(B) $N{a}_{2}O$ and NaOH

(C) $N{a}_{2}O$ and $N{a}_{2}C{O}_{3}$

(D) NaOH and $N{a}_{2}C{O}_{3}$