MCQ
The quantitative estimation of $O_3$ is based on
- ✓Its reaction with $PbS$
- BIts reaction with $NO$
- CIts reaction with $KI$ and titration of $I_2$ liberated with sodium thiosulphate
- DIts reaction with $H_2O_2$ in presence of $K_2Cr_2O_7$
✓
Answer
Correct option: A.
Its reaction with $PbS$
a
correct order of electron gain enthalpy is :$O < s > Se > Te$
correct order of electron gain enthalpy is :$O < s > Se > Te$
$\Rightarrow S > Se > Te > O$
(Oxygen shows least electron gain enthalpy due to small size of atom)
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