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NEET2009Chemistryp Block Elements (Group 15, 16, 17 & 18)Actual

Which of the following is not correct ?

Options

  1. AHydrolysis of NCl ₃ gives NH ₃ and HOCl
  2. BNH ₃ is less stable than PH ₃
  3. CNH ₃ is a weak reducing reagent compared to PH ₃
  4. DNitric oxide in solid state exhibits diamagnetic property

Correct answer

B. NH ₃ is less stable than PH ₃

Step-by-step solution

Among V A group hydrides, the stability decreases in going down the group ie, NH ₃ PH ₃ AsH ₃ SbH ₃ BiH ₃ It is due to the increasing bond length down the group.

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