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Question

Which among the following compounds does not undergo hydrolysis?


A

TeF6

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B

SF6

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C

NCl3

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D

NF3

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Solution

The correct option is D

NF3


Explanation for correct option

(D)NF3

  • NF3 is not hydrolyzed because in NF3 both N and F have no vacant orbital to accommodate electrons.
  • So, NF3 does not get hydrolyzed.

Explanation for incorrect option

(A)

  • TeF6 is hydrolysed to form H6TeO6

TeF6+6H2O→6HF+H6TeO6

(B)

  • SF6 atom is sterically protected by six F atoms and does not allow water molecules to attack the S atom. Further, F does not have d-orbitals to accept. HenceSF6 is not hydrolyzed.

(C)

  • NCl3 is hydrolyzed to form ammonia and HOCl

Hence, options (A), (B), and (C) are incorrect.

Hence, option (D) is correct. NF3 does not undergo hydrolysis.


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