MCQ
Sodium thiosulphate is formed when
- A$SO_2$ is boiled into $Na_2S$
- B$Na_2SO_3$ is boiled with elemental sulphur
- C$H_2S_2O_3$ is neutralised by $NaOH$
- ✓Both $(B)$ and $(C)$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.


[Given : molar mass of $Br _2=160\,g\,mol ^{-1}$
atomic mass of $C =12\,g\,mol ^{-1}$
atomic mass of $Cl =35.5\,g\,mol ^{-1}$
density of dibromine $=3.2\,g\,cm ^{-3}$
density of $\left.CCl _4=1.6\,g\,cm ^{-3}\right]$