Question

Assertion (A): Pure ethanoic acid is also known as glacial acetic acid.

Reason (R): Pure ethanoic acid often freezes during winter due to its low melting point of 290 K.

Options

• Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).

• Both Assertion (A) and Reason (R) are true, but Renson (R) is not the correct explanation of the Assertion (A).

• Assertion (A) is true, but Reason (R) is false.

• Assertion (A) is false, but Reason (R) is true.

Answer 1

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).

Explanation:

Based on the information provided, both Assertion (A) and Reason (R) are true. Pure ethanoic acid has a melting point of approximately 290 K (17°C), which causes it to freeze and form ice-like crystals in cold climates, leading to the name “glacial acetic acid”. The reason explains why it is called “glacial”.