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Select the incorrect statement(s) about \( \mathrm{N}_{2} \mathrm{~F}_{4} \) and
\( \mathrm{P} \)
\( \mathrm{N}_{2} \mathrm{H}_{4} \).
W
(1) In \( \mathrm{N}_{2} \mathrm{~F}_{4}, \mathrm{~d} \)-orbitals are contracted by electronegative fluorine atoms, but d-orbital contraction is not possible by \( \mathrm{H} \)-atom in \( \mathrm{N}_{2} \mathrm{H}_{4} \).
(2) The N-N bond energy in \( \mathrm{N}_{2} \mathrm{~F}_{4} \) is more than \( \mathrm{N}-\mathrm{N} \) bond energy in \( \mathrm{N}_{2} \mathrm{H}_{4} \).
(3) The N-N bond length in \( \mathrm{N}_{2} \mathrm{~F}_{4} \) is more than that in \( \mathrm{N}_{2} \mathrm{H}_{4} \).
(4) The \( \mathrm{N}-\mathrm{N} \) bond length in \( \mathrm{N}_{2} \mathrm{~F}_{4} \) is less than that in \( \mathrm{N}_{2} \mathrm{H}_{4} \).
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