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JEE Main 2011

Exam: JEE Main
Year: 2011
Subject: Chemistry
Chapter: Classification of Elements and Periodicity in Properties

JEE Main 2011 · Chemistry · Classification of Elements and Periodicity in Properties

Which of the following statement is wrong?

Which of the following statement is wrong?

Options

ANitrogen cannot form $d \pi-p \pi$ bond.
BSingle $\mathrm{N}-\mathrm{N}$ bond is weaker than the single $\mathrm{P}-\mathrm{P}$ bond,
C $\mathrm{N}_2 \mathrm{O}_4$ has two resonance structures
DThe stability of hydrides increases from $\mathrm{NH}_3$ to $\mathrm{BiH}_3$ in group 15 of the periodic table

Correct answer

D. The stability of hydrides increases from $\mathrm{NH}_3$ to $\mathrm{BiH}_3$ in group 15 of the periodic table

Step-by-step solution

Stability of hydrides decreases down the group from

\mathrm{NH}_3

to

\mathrm{BiH}_3

as

\mathrm{M}-\mathrm{H}

bond energy decreases.

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