Phenols are acidic in nature, hence, have pH value < 7.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323199
Which of the following compounds is most acidic?
1 \(\mathrm{CH}_{4}\)
2 \(\mathrm{C}_{2} \mathrm{H}_{6}\)
3 \(\mathrm{CH} \equiv \mathrm{CH}\)
4 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\)
Explanation:
Among given choices, \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\) can give proton \(\left(\mathrm{H}^{+}\right)\)most easily. \(\therefore \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\) is most acidic among \(\mathrm{C}_{2} \mathrm{H}_{6}, \mathrm{CH}_{4}\) and \(\mathrm{CH} \equiv \mathrm{CH}\).
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323200
Assertion : In esterification reaction, \(\mathrm{HCOOH}\) is the most reactive acid among carboxylic acids. Reason : Alcohol acts as nucleophile.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
\(\mathrm{HCOOH}\) is the most reactive acid among the carboxylic acid. Alcohol acts as nucleophile.
Phenols are acidic in nature, hence, have pH value < 7.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323199
Which of the following compounds is most acidic?
1 \(\mathrm{CH}_{4}\)
2 \(\mathrm{C}_{2} \mathrm{H}_{6}\)
3 \(\mathrm{CH} \equiv \mathrm{CH}\)
4 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\)
Explanation:
Among given choices, \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\) can give proton \(\left(\mathrm{H}^{+}\right)\)most easily. \(\therefore \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\) is most acidic among \(\mathrm{C}_{2} \mathrm{H}_{6}, \mathrm{CH}_{4}\) and \(\mathrm{CH} \equiv \mathrm{CH}\).
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323200
Assertion : In esterification reaction, \(\mathrm{HCOOH}\) is the most reactive acid among carboxylic acids. Reason : Alcohol acts as nucleophile.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
\(\mathrm{HCOOH}\) is the most reactive acid among the carboxylic acid. Alcohol acts as nucleophile.
Phenols are acidic in nature, hence, have pH value < 7.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323199
Which of the following compounds is most acidic?
1 \(\mathrm{CH}_{4}\)
2 \(\mathrm{C}_{2} \mathrm{H}_{6}\)
3 \(\mathrm{CH} \equiv \mathrm{CH}\)
4 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\)
Explanation:
Among given choices, \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\) can give proton \(\left(\mathrm{H}^{+}\right)\)most easily. \(\therefore \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\) is most acidic among \(\mathrm{C}_{2} \mathrm{H}_{6}, \mathrm{CH}_{4}\) and \(\mathrm{CH} \equiv \mathrm{CH}\).
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323200
Assertion : In esterification reaction, \(\mathrm{HCOOH}\) is the most reactive acid among carboxylic acids. Reason : Alcohol acts as nucleophile.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
\(\mathrm{HCOOH}\) is the most reactive acid among the carboxylic acid. Alcohol acts as nucleophile.
Phenols are acidic in nature, hence, have pH value < 7.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323199
Which of the following compounds is most acidic?
1 \(\mathrm{CH}_{4}\)
2 \(\mathrm{C}_{2} \mathrm{H}_{6}\)
3 \(\mathrm{CH} \equiv \mathrm{CH}\)
4 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\)
Explanation:
Among given choices, \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\) can give proton \(\left(\mathrm{H}^{+}\right)\)most easily. \(\therefore \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\) is most acidic among \(\mathrm{C}_{2} \mathrm{H}_{6}, \mathrm{CH}_{4}\) and \(\mathrm{CH} \equiv \mathrm{CH}\).
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323200
Assertion : In esterification reaction, \(\mathrm{HCOOH}\) is the most reactive acid among carboxylic acids. Reason : Alcohol acts as nucleophile.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
\(\mathrm{HCOOH}\) is the most reactive acid among the carboxylic acid. Alcohol acts as nucleophile.