JEE MAIN - Chemistry (2025 - 3rd April Morning Shift - No. 8)
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 the above statements, choose the correct answer from the options given below
Statement I is false but Statement II is true
Both Statement I and Statement II are true
Both Statement I and Statement II are false
Statement I is true but Statement II is false
Explanation
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single bond weaker than
_3rd_April_Morning_Shift_en_8_2.png)
due to more $\ell \mathrm{p}-\ell \mathrm{p}$ repulsion.
Bond length $\Rightarrow d_{p-p}>d_{\mathrm{N}-\mathrm{N}}(\operatorname{size} \uparrow$, B.L. $\uparrow)$
In group 15 elements only N \& P show disproportionation in +3 oxidation state, As, $\mathbf{S b} \&$ Bi have almost inert for disproportionation in +3 oxidation state.
So both statements are false.
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