(a) What is the covalence of nitrogen in `N_(2)O_(5)`? (b) `BiH_(3)` is stronger reducing agent than `SbH_(3)`, why ?

(a) What is the covalence of nitrogen in `N_(2)O_(5)`? (b) `BiH_(3)` i

1.	(a) What is the covalence of nitrogen in `N_(2)O_(5)`? (b) `BiH_(3)` is stronger reducing agent than `SbH_(3)`, why ?
Answer» (a) Covalency of nitrogen is `N_(2)O_(5)` is 4. (b) As we move down the group, the size of element increases, the length of E-H bond increases and its strength decreases and can break more easily to evolve `H_(2)` gas which acts as reducing agent. The Bi-H bond is weaker than Sb-H. Hence, `BiH_(3)` is strong reducing agent than `SbH_(3)`.

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(a) What is the covalence of nitrogen in `N_(2)O_(5)`? (b) `BiH_(3)` is stronger reducing agent than `SbH_(3)`, why ?

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