The statement which is not true:

(A)    Boiling point of ethanol is greater than that of ethoxyethane due to H-bonding

(B)    Ethoxyethane is soluble in water due to H-bonding

(C)    Ethanol is soluble in water due to H-bonding

(D)   Ethoxyethane has nearly the same boiling point as that of butanol

Choose the correct answer from the options given below:

D only

The correct answer is option 1. D only.

The statement that is not true is (D) Ethoxyethane has nearly the same boiling point as butanol.

Here's why:

(A) Boiling point of ethanol is greater than that of ethoxyethane due to H-bonding:  This is true. Ethanol can form hydrogen bonds due to the O-H group, whereas ethoxyethane cannot. Hydrogen bonds require more energy to break, leading to a higher boiling point for ethanol (78.3°C) compared to ethoxyethane (34.6°C).

(B) Ethoxyethane is soluble in water due to H-bonding: This is not entirely true. While ethoxyethane can weakly participate in hydrogen bonding with water molecules due to the lone pair on the oxygen, its larger size and lower polarity limit its solubility in water compared to ethanol. It has limited solubility (6.9 g/100 mL) compared to ethanol's high solubility (unlimited).

(C) Ethanol is soluble in water due to H-bonding:  This is true. As mentioned in (A), ethanol can form hydrogen bonds with water molecules, leading to good solubility.

(D) Ethoxyethane has nearly the same boiling point as butanol:  This is not true. Butanol also has an O-H group and can form hydrogen bonds, leading to a significantly higher boiling point (117.7°C) compared to ethoxyethane.

Therefore, the statement that deviates from truth is (D) Ethoxyethane has nearly the same boiling point as butanol.