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Select the incorrect statement(s) about \( \mathrm{N}_{2} \mathrm{~F}_{4} \) and
P \( \mathrm{N}_{2} \mathrm{H}_{4} \).

W
(1) In \( \mathrm{N}_{2} \mathrm{~F}_{4}, d \)-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 \( \mathrm{N}-\mathrm{N} \) 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 \( \mathrm{N}-\mathrm{N} \) bond length in \( \mathrm{N}_{2} \mathrm{~F}_{4} \) is more than that of \( \mathrm{N}_{2} \mathrm{H}_{4} \)
(4) The \( \mathrm{N}-\mathrm{N} \) bond length in \( \mathrm{N}_{2} \mathrm{~F}_{4} \) is less than that of \( \mathrm{N}_{2} \mathrm{H}_{4} \)
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