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JEE CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE
1
Medium
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Analyzing
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : has lower boiling point than .
Reason (R) : In liquid state molecules are associated through vander waal's forces, but molecules are associated through hydrogen bonding.
In the light of the above statements, choose the most appropriate answer from the options given below:
Assertion (A) : has lower boiling point than .
Reason (R) : In liquid state molecules are associated through vander waal's forces, but molecules are associated through hydrogen bonding.
In the light of the above statements, choose the most appropriate answer from the options given below:
View answer and explanation
Correct option: D
(A) is correct but (R) is not correct
Option D ((A) is correct but (R) is not correct) is correct because PH3 has a lower boiling point than NH3, but the reason is due to weaker van der Waals forces, not hydrogen bonding in PH3.
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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.