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JEE Main20253 Apr 2025Morning ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual

Given below are two statements Statement I : The N-N single bond is weaker and longer than that of P - P single bond Statement II : Compounds of group 15 elements in +3 oxidation states readily undergo disproportionation reactions. In the light of above statements, choose the correct answer from the options given below

Options

  1. AStatement I is true but statement II is false
  2. BBoth statement I and statement II are false
  3. CStatement I is false but statement II is true
  4. DBoth statement I and statement II are true

Correct answer

B. Both statement I and statement II are false

Step-by-step solution

N - N single bond weaker than P - P due to more p - p repulsion. Bond length d_ p-p d_ N-N ( size , B.L. ) In group 15 elements only N & P show disproportionation in +3 oxidation state, As, Sb & Bi have almost inert for disproportionation in +3 oxidation state. So both statements are false.

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