MCQ
.


- A

- B

- ✓

- D







Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Given : $K_b(H_2O) = 0.51\, Kkg \,mol^{-1}$
$N_A = 6 × 10^{23}$
$[Li = 7, \,\,Na = 23$, $K = 39,\,\, Rb = 85.5$ , $Cs = 133, \,\,Cl = 35.5]$