Assertion:The boiling points of given compounds follow the order: CH3CH2 CH2CHO ≈ CH3CH2CH2CH2CH3

Question

Assertion:The boiling points of given compounds follow the order: CH3CH2 CH2CHO ≈ CH3CH2CH2CH2CH3 < CH3CH2CH2CH2OH ≈ H5C2OC2H5 Reason :Boiling point depends upon molecular mass only. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

The correct order is: CH3CH2CH2CH2CH3 < H5C2OC2H5 < CH3CH2CH2CHO < CH3CH2CH2CH2OH Boiling point depends upon the nature of intermolecular forces, stronger the forces, higher is the boiling point. CH3CH2CH2CH2OH molecules are associated due to extensive intermolecular hydrogen bonding, CH3CH2CH2CHO has stronger dipole-dipole attractions as compared to H5C2OC2H5 and CH3CH2CH2CH2CH3 molecules have only van der Waals forces.

Q. Assertion:The boiling points of given compounds follow the order: CH3​CH2​CH2​CHO≈CH3​CH2​CH2​CH2​CH3​<CH3​CH2​CH2​CH2​OH≈H5​C2​OC2​H5​ Reason :Boiling point depends upon molecular mass only.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

Q. Assertion:The boiling points of given compounds follow the order:
$C H_{3} C H_{2} C H_{2} C H O \approx C H_{3} C H_{2} C H_{2} C H_{2} C H_{3} < C H_{3} C H_{2} C H_{2} C H_{2} O H \approx H_{5} C_{2} O C_{2} H_{5}$
Reason :Boiling point depends upon molecular mass only.