MCQ
Conjugate base of $N{H_3}$ is
- A$NH_4^ \oplus $
- B$NH_2^ \oplus $
- ✓$NH_2^\Theta $
- D${N_2}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
${P_4} + 6Cl_2\xrightarrow{\Delta }PC{l_3}$

$I.$ $1$ molecule of oxygen
$II.$ $1$ atom of nitrogen
$III.$ $1 \times {10^{ - 10}}$ $g$ molecular weight of oxygen
$IV.$ $1 \times {10^{ - 10}}$ $g$ atomic weight of copper