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Give reasons: i) Nitrogen exists as a ...

Give reasons:
i) Nitrogen exists as a diatomic molecule 
ii) Nitrogen cannot form a pentahalide 
iii) Aluminium does not dissolve in conc. `HNO_(3)` 

Text Solution

Verified by Experts

i) Nitrogen form diatomic molecules becasue it forins stable `ppi - ppi` multiple bond with itself. 
ii) Due to non availability of d.orbitals in its valence shell. 
iii) Due to formation of passive film of oxide on the surface.
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