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Assertion Although PF5,PCl5 and PBr5 are...

Assertion Although `PF_5,PCl_5` and `PBr_5` are known, the pentahalides of nitrogen have not been observed.
Reason : Phosphorus has lower electronegativity than nitrogen.

A

If both Assertion and Reason are correct and Reason is the correct explanation of Assertion

B

If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion

C

If Assertion is correct , but Reason is incorrect

D

If both Assertion and Reason are incorrect

Text Solution

Verified by Experts

The correct Answer is:
B
Nitrogen cannot form pentahalides because it cannot expand its octet due to non-availability of d-orbitals.
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BRILLIANT PUBLICATION-P-BLOCK ELEMENTS-LEVEL II (ASSERTION AND REASON)
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  2. Assertion : Xenon fluorides are well known and stable but the correspo...

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  8. Assertion : Fluorine combines with sulphurto form SF6 but no other hal...

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  11. Assertion : The covalence of nitrogen in N2O5 is 5. Reason : Nitrog...

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  12. Assertion: Molecular nitrogen is less reactive than molecular oxygen ...

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  13. Assertion : On cooling, the brown colour of nitrogen dioxide disappear...

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  14. Assertion : Elementary phosphorus exists in three principal allotropic...

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  15. Assertion : H-S-H bond angle in H2S is closer to 90^@ but: H-O-H bond ...

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  18. Assertion : The O-O bond length in H2O2 is shorter than that of O2F2 ...

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