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Chemistry
Maximum number of covalent bonds formed by N and P are
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Q. Maximum number of covalent bonds formed by $N$ and $P$ are
KEAM
KEAM 2018
The p-Block Elements - Part2
A
3,5
38%
B
3,6
23%
C
3,4,5
15%
D
3,4,6
19%
E
None of the above
19%
Solution:
The outermost orbital of $N$ -atom contain 3 unpaired electrons and has $n=2$
Thus, it is not able to expand its octet and can only form 3 covalent bonds.
It can also form one coordinate bond with the help of one lone-pair of electrons over $N$ -atom $(\therefore $ total $=4)$
On the other hand, the outer most orbital for $P$ is $n=3$
which contain $3 d$ empty orbitals.
(has 5-unpaired electrons) Thus, none of the given are correct.