Q.66. Given below are two statements:Statement-I : Due to increase in van der Waals forces, the orde

Q: What is the correct answer for JEE Main Chemistry Q66?

The correct answer is C. Statement I: As the molecular weight and surface area increase, van der Waals forces increase, leading to higher boiling points. The order of boiling points for alkyl iodides is $CH_3CH_2CH_2I > CH_3CH_2I > CH_3I$. This statement is true.Statement II: p-Dichlorobenzene is more symmetric than o-dichlorobenzene, allowing it to pack more efficiently in the crystal lattice, leading to a higher melting

Q: Q.66. Given below are two statements:Statement-I : Due to increase in van der Waals forces, the order of boiling points is .Statement-II: As [Figure: Structure of p-dichlorobenzene] is more…

The correct answer is C. Statement I: As the molecular weight and surface area increase, van der Waals forces increase, leading to higher boiling points. The order of boiling points for alkyl iodides is $CH_3CH_2CH_2I > CH_3CH_2I > CH_3I$. This statement is true.Statement II: p-Dichlorobenzene is more symmetric than o-dichlorobenzene, allowing it to pack more efficiently in the crystal lattice, leading to a higher melting

Q: What are the options for this JEE Main Chemistry question?

A. Both Statement-I and Statement-II are true. · B. Both Statement-I and Statement-II are false. · C. Statement-I is true but Statement-II is false. · D. Statement-I is false but Statement-II is true.

Question

Q.66. Given below are two statements:Statement-I : Due to increase in van der Waals forces, the order of boiling points is .Statement-II: As [Figure: Structure of p-dichlorobenzene] is more symmetric, its melting point is higher than [Figure: Structure of o-dichlorobenzene] however its boiling point is lower than [Figure: Structure of o-dichlorobenzene].In the light of the above statements, choose the correct answer from the options given below:

FirstInTest · Accepted Answer

Statement I: As the molecular weight and surface area increase, van der Waals forces increase, leading to higher boiling points. The order of boiling points for alkyl iodides is $CH_3CH_2CH_2I > CH_3CH_2I > CH_3I$. This statement is true.Statement II: p-Dichlorobenzene is more symmetric than o-dichlorobenzene, allowing it to pack more efficiently in the crystal lattice, leading to a higher melting point. However, o-dichlorobenzene has a higher dipole moment than p-dichlorobenzene (which has zero dipole moment due to symmetry), leading to stronger intermolecular forces and thus a higher boiling point. The statement says p-dichlorobenzene's boiling point is lower than o-dichlorobenzene, which is correct. So, Statement II is true.Both statements are true.

Answer

Both Statement-I and Statement-II are true.

Answer

Both Statement-I and Statement-II are false.

Answer

Statement-I is true but Statement-II is false.

Answer

Statement-I is false but Statement-II is true.

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