JEE MAIN - Chemistry (2021 - 26th February Morning Shift - No. 6)
Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : Dipole-dipole interactions are the only non-covalent interactions, resulting in hydrogen bond formation.
Reason R : Fluorine is the most electronegative element and hydrogen bonds in HF are symmetrical.
In the light of the above statements, choose the most appropriate answer from the options given below :
Assertion A : Dipole-dipole interactions are the only non-covalent interactions, resulting in hydrogen bond formation.
Reason R : Fluorine is the most electronegative element and hydrogen bonds in HF are symmetrical.
In the light of the above statements, choose the most appropriate answer from the options given below :
Both A and R are true and R is the correct explanation of A
A is true but R is false
A is false but R is true
Both A and R are true but R is NOT the correct explanation of A
Explanation
Dipole - Dipole are not only the interaction
responsible for hydrogen bond formation.
Ion-dipole can also be responsible for
hydrogen bond formation.
F is most electronegative element and anhydrous HF in solid phase has symmetrical hydrogen bonding.
F is most electronegative element and anhydrous HF in solid phase has symmetrical hydrogen bonding.
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