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JEE CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE
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Assertion : Nitrogen is unreactive at room temperature but becomes reactive at elevated temperature (on heating or in the presence of catalysts).
Reason : In nitrogen molecule, there is extensive delocalization of electrons.
Reason : In nitrogen molecule, there is extensive delocalization of electrons.
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Correct option: C
If Assertion is True but the Reason is False
Option C (If Assertion is True but the Reason is False) is correct because while nitrogen is unreactive at room temperature, the reason is due to the high bond dissociation energy of the N≡N triple bond, not electron delocalization.
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The hybridization in sulphur dioxide is
has the same geometry as:
The pair of molecules forming strongest hydrogen bonds are
Paramagnetism is shown by
Which statement is correct?
Assertion (A) : is a weaker Lewis acid than .
Reason (R) : The planar molecule is stabilised to a greater extent than by -bonding.
Reason (R) : The planar molecule is stabilised to a greater extent than by -bonding.