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JEE CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE
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Understanding
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Consider the following statements.
I. Bond enthalpy increases as bond order decreases
II. Bond length decreases as bond order increases
III. There is a effect of electronegativity on bond energy
Select the correct statement (s).
I. Bond enthalpy increases as bond order decreases
II. Bond length decreases as bond order increases
III. There is a effect of electronegativity on bond energy
Select the correct statement (s).
View answer and explanation
Correct option: B
II & III
Option B (II & III) is correct because bond length decreases with increasing bond order and electronegativity difference affects bond energy.
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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.