Q. When heated NH_{3} is passed over CuO gas evolved is

A) N_{2}
B) N_{2}O
C) HNO_{3}
D) NO_{2}
Explanation

(a)
3CaO+2NH_{3}⟶3Ca+N_{2}+3H_{2}O
$\therefore\$N_{2}gas is evolved when CaO reacts with NH_{3.}

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.