Question

Which of the following statements are correct?
i) Ordinary ethyl alcohol is known as grain alcohol.
ii) Methylated spirit contains rectified spirit.
iii) Absolute alcohol is 100% ethanol.
iv) Rectified spirit is 100% ethanol.

• A. ii, iii, iv
• B. ii, iii
• C. i, ii, iii
• D. All are correct

Answer 1

The correct option is C i, ii, iii

i. Ordinary ethanol is called grain alcohol is a true factual statement.
ii. Methylated spirit contains 85-90% rectified spirit and 10-15% methanol.
iii. Absolute or anhydrous alcohol refers to ethanol with a low water content. There are various grades with maximum water contents ranging from 1% to a few parts per million (ppm) levels.
iv. Rectified spirit is an azeotropic composition of 96% ethanol containing 4% water.

Option C is correct.