MCQ
If the valency shell electronic structure for an element is $n{s^2}n{p^5}$, this element will belong to the group of
- AAlkali metals
- BInert metals
- CNoble gases
- ✓Halogens
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Statement $I$ : The higher oxidation states are more stable down the group among transition elements unlike p-block elements.
Statement $II$ : Copper can not liberate hydrogen from weak acids.
In the light of the above statements, choose the correct answer from the options given below :
[Given : $h =6.63 \times 10^{-34}\, J \,s$, and $c =3 \times 10^{8} \,m\, s ^{-1}$ ]
$2K\,Cl{O_3}\xrightarrow{{}}2KCl + 3{O_2}$ law of mass action