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1.	Picric acid is a yellow coloured compound. Its chemical name is1. m-nitrobenzoic acid 2. 2, 4, 6-trinitrophenol 3. Trinitrotoluene 4. trinitroaniline
Answer» Picric acid is a yellow coloured compound. Its chemical name is 2, 4, 6-trinitrophenol

2.	In the Libermann's nitroso reaction, sequential changes in the colour of phenol occurs as (1) Deep blue → red → deep blue (2) Red → Deep Blue → Green (3) Red → Green →White (4) White →Red →Green
Answer» In the Libermann's nitroso reaction, sequential changes in the colour of phenol occurs as Deep blue → red → deep blue

3.	Phenol on treating with concentrated H2SO4 at 15–20ºC mainly produces (1) Phenol -2 – sulphonic acid (2) Phenol -4 – sulphonic acid (3) A 50% mixture of ortho and para phenol sulphonic acid (4) Phenol – 2, 46 – trisulphonic acid
Answer» Phenol on treating with concentrated H₂SO₄ at 15–20ºC mainly produces Phenol -4 – sulphonic acid

4.	The lowest pKa is that of (1) Ethanol (2) propanol (3) propane (4) phenol
Answer» The lowest pK_a is that of phenol

5.	Assertion (A): Phenols are more acidic than aliphatic alcohols.Reason (R): Phenoxides are stabilized by resonance. (1) Both A & R are correct, R is the correct explanation of A.(2) Both A & R are correct, R is not the correct explanation of A (3) A is correct but R is incorrect (4) A is incorrect but R is correct
Answer» (1) Both A & R are correct, R is the correct explanation of A.

6.	Which of the following order is true regarding the acidic nature of phenol? (1) Phenol > o – Cresol > o – Nitrophenol (2) Phenol > o – Cresol < o – Nitrophenol (3) Phenol < o – Cresol < o – Nitrophenol 4) Phenol < o – Cresol > o – Nitrophenol
Answer» Phenol > o – Cresol < o – Nitrophenol is true regarding the acidic nature of phenol

7.	In the following compoundsI. PhenolII. 4-methyl phenolIII. 3-nitrophenol IV. 4-nitrophenol The order of acidity is 1. III > IV > I > II 2. I > IV > III > II 3. II > I > III > IV 4. IV > III > I > II
Answer» The order of acidity is IV > III > I > II

8.	Which one of the following compounds would undergo nitration with greatest ease?1. Benzene2. Phenol 3. Nitrobenzene 4. Benzoic acid
Answer» Phenol compounds would undergo nitration with greatest ease.

9.	On distilling 2 – hydroxy benzoic acid with Zn dust, it gives (1) Phenol (2) Benzoic acid (3) Benzaldehyde (4) A polymeric compound
Answer» On distilling 2 – hydroxy benzoic acid with Zn dust, it gives Benzoic acid

10.	Phenol is 1. a base weaker than ammonia 2. an acid stronger than carbonic acid 3. an acid weaker than carbonic acid 4. a neutral compound
Answer» Phenol is an acid weaker than carbonic acid

11.	The most acidic compound among the following is 1. phenol 2. Ethanol 3. 3,5-dinitrophenol 4. 4-methoxy phenol
Answer» The most acidic compound among the following is 3,5-dinitrophenol

12.	Which of the following is most volatile ?1. p-nitrophenol 2. m-nitrophenol 3. o-nitro phenol 4. All of these
Answer» o-nitro phenol is most volatile .

13.	Which does not have a carboxyl group ?1. Picric acid 2. Ethanoic acid 3. Aspirin4. Benzoic acid
Answer» Picric acid does not have a carboxyl group

14.	Phenol on treating with concentrated H2SO4 at 100ºC mainly produces(1) ortho – phenolsulphonic acid (2) para – phenolsulphonic acid (3) A 50% mixture of ortho – and para – phenolsulphonic acid (4) Phenol – 2, 4, 6 – trisulphonci acid
Answer» Phenol on treating with concentrated H₂SO₄ at 100ºC mainly produces para – phenolsulphonic acid

15.	C6H5OH + CHCl3 + NaOH → salicylaldehyde The electrophile involved in the above reaction is.
Answer» The electrophile involved in the above reaction is dichlorocarbene (:CCl₂)