MCQ
The elements in which $s$ and $p$-orbitals are present
- ACommon elements
- ✓Inert gases
- CHalogens
- DTransitional elements
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$B _{2}, Li _{2}, C _{2}, C _{2}^{-}, O _{2}^{2-}, O _{2}^{+}$and $He _{2}^{+}$
$(b)\, NaOH$ in $20\, gm$ will be respectively.