ChemistryOrganic: Alcohols, Phenols and Ethers

Match List I with List II LIST I LIST II A. Methyl alcohol I. Highly…

Match List I with List II

Choose the correct answer from the options given below:

Answer & explanation

Correct answer: option 2

The correct answer is Option (2) → A-I, B-III, C-II, D-IV

Each item is matched by its best-known property or name:

(A) Methyl alcohol — This matches I. Highly poisonous. Methanol (wood spirit) is highly poisonous; even small amounts can cause blindness and larger amounts death.
(B) Ethyl alcohol — This matches III. Highly soluble in water. Its –OH group forms hydrogen bonds with water molecules, and with a small alkyl part it mixes with water in all proportions.
(C) Phenol — This matches II. Carbolic acid. Phenol is also known as carbolic acid; it was first isolated from coal tar.
(D) Picric acid — This matches IV. Turns blue litmus red. In 2,4,6-trinitrophenol three electron-withdrawing –\( \ce{NO2} \) groups make the –OH strongly acidic (pK_a about 0.4), so it turns blue litmus red, which phenol itself does not do.

Match List I with List II

Choose the correct answer from the options given below:

Answer & explanation

Correct answer: option 2

The correct answer is Option (2) → A-I, B-III, C-II, D-IV

Each item is matched by its best-known property or name:

(A) Methyl alcohol — This matches I. Highly poisonous. Methanol (wood spirit) is highly poisonous; even small amounts can cause blindness and larger amounts death.
(B) Ethyl alcohol — This matches III. Highly soluble in water. Its –OH group forms hydrogen bonds with water molecules, and with a small alkyl part it mixes with water in all proportions.
(C) Phenol — This matches II. Carbolic acid. Phenol is also known as carbolic acid; it was first isolated from coal tar.
(D) Picric acid — This matches IV. Turns blue litmus red. In 2,4,6-trinitrophenol three electron-withdrawing –\( \ce{NO2} \) groups make the –OH strongly acidic (pK_a about 0.4), so it turns blue litmus red, which phenol itself does not do.