Q47.Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: ππΎπ value of phenol is 10 . 0 while that of ethanol is 15 . 9. Reason R: Ethanol is stronger acid than phenol. In the light of the above statements, choose the correct answer from the options given below: (1) A is true but R is false (2) A is false but R is true (3) Both A and R are true and R is the correct (4) Both A and R are true but R is NOT the correct explanation of A explanation of A.
What This Question Tests
This question tests the comparative acidity of phenol and ethanol, requiring knowledge of pKa values and the factors influencing acidity.
Concepts Tested
π NCERT Sections This Tests
7.14 β Give Two Reactions That Show The Acidic Nature Of Phenol. Compare Acidity
Chemistry Class 12 Β· Chapter 7
7.14 Give two reactions that show the acidic nature of phenol. Compare acidity of phenol with that of ethanol.
7.8 β Ortho And Para Nitrophenols Are More Acidic Than Phenol. Draw The
Chemistry Class 12 Β· Chapter 7
7.8 Ortho and para nitrophenols are more acidic than phenol. Draw the resonance structures of the corresponding phenoxide ions.
7.22 β Give Reason For The Higher Boiling Point Of Ethanol In Comparison To
Chemistry Class 12 Β· Chapter 7
7.22 Give reason for the higher boiling point of ethanol in comparison to methoxymethane. 223 Alcohols, Phenols and Ethers Reprint 2025-26
π Question Details
- Chapter
- Alcohols Phenols Ethers
- Topic
- Acidity of phenols and alcohols
- Year
- 2024
- Shift
- 31 Jan Shift 1
- Q Number
- Q47
- Type
- Assertion Reasoning
- NCERT Ref
- Class 12 Chemistry Ch 11: Alcohols Phenols Ethers
More from this Chapter
Q68.Phenol, when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid, gives (1) 2,4,6-trinitrobenzene (2) o-nitrophenol (3) p-nitrophenol (4) nitrobenzene
Q41.The number of stereoisomers possible for a compound of the molecular formula CH3 βCH = CH βCH(OH) βMe is : (1) 3 (2) 2 (3) 4 (4) 6
Q56.The major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide is : (1) benzoic acid (2) salicylaldehyde (3) salicylic acid (4) phthalic acid
Q43.The edge length of a face centered cubic cell of an ionic substance is 508pm. If the radius of the cation is 110pm, the radius of the anion is (1) 288pm (2) 398pm (3) 618pm (4) 144pm