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.



$Ag\left( s \right)/A{g^ \oplus }||C{u^{2 + }}/Cu\left( s \right)$
$A{g^ \oplus } + {e^ - } \to Ag\,;\,{E^o} = x$
$C{u^{2 + }} + 2{e^ - } \to Cu\,;\,{E^o} = y$
$E^o_{cell}$ is