Question

Which of the group `15` elelments are non-metallic ?
A. N
B. P
C. As
D. Sb

Answer 1

Correct Answer - A::B
`underset ((A)) (NH_4NO_3) + NaOH rarr underset ("Non-inflammabl e gas") (NaNO_3) + H_2 O`
`NaNO_3 + 4Zn + 7NaOH rarr 4 Na_2 ZnO_2 + NH_3 + 2H_2 O`
`NH_4 NO_2 (A) + NaOH rarr NH_3 + NaNO_2 + H_2 O`
`3 Zn + 5 NaOH + NaNO_2 rarr 3 Na ZnO_2 + NH_3 + H_2 O`.