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 $(C)$
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$\begin{align}
\begin{matrix}
C{{H}_{3}}-CH-C{{O}_{2}}H \\
|\,\,\,\,\,\,\,\, \\
\underset{\oplus }{\mathop{N}}{{H}_{3}} \\
\end{matrix}\,\,\,\,\,\,p{{K}_{a}}=2.2 \\
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,p{{K}_{b}}=4.4 \\
\end{align}$