323262
Mark the correct order of decreasing acid strength of the following compounds.(I)(V)
1 V \(>\) IV \(>\) II \(>\) I \(>\) III
2 II \(>\) IV \(>\) III \(>\) I \(>\) V
3 IV \(>\) V \(>\) III \(>\) II \(>\) I
4 V \(>\) IV \(>\) III \(>\) II \(>\) I
Explanation:
Phenol acidic strength is directly proportional to -I. effect group and inversely proportional to \(+\mathrm{I}\). effect group.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323263
The correct order of \(\mathrm{pK}_{\mathrm{a}}\) values for the following compound is
1 A \(>\) B \(>\) C \(>\) D
2 B \(>\) A \(>\) D \(>\) C
3 B \(>\) D \(>\) A \(>\) C
4 C \(>\) A \(>\) D \(>\) B
Explanation:
Higher the value of \({{\text{K}}_{\text{a}}}\) or lower the value of \(\mathrm{pK}_{\mathrm{a}}\), stronger will be the acid. Presence of electron donating groups reduces acidic nature of phenol. Presence of electron withdrawing group increases the acidic strength of phenol. Thus, order of acidic strength
323262
Mark the correct order of decreasing acid strength of the following compounds.(I)(V)
1 V \(>\) IV \(>\) II \(>\) I \(>\) III
2 II \(>\) IV \(>\) III \(>\) I \(>\) V
3 IV \(>\) V \(>\) III \(>\) II \(>\) I
4 V \(>\) IV \(>\) III \(>\) II \(>\) I
Explanation:
Phenol acidic strength is directly proportional to -I. effect group and inversely proportional to \(+\mathrm{I}\). effect group.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323263
The correct order of \(\mathrm{pK}_{\mathrm{a}}\) values for the following compound is
1 A \(>\) B \(>\) C \(>\) D
2 B \(>\) A \(>\) D \(>\) C
3 B \(>\) D \(>\) A \(>\) C
4 C \(>\) A \(>\) D \(>\) B
Explanation:
Higher the value of \({{\text{K}}_{\text{a}}}\) or lower the value of \(\mathrm{pK}_{\mathrm{a}}\), stronger will be the acid. Presence of electron donating groups reduces acidic nature of phenol. Presence of electron withdrawing group increases the acidic strength of phenol. Thus, order of acidic strength
323262
Mark the correct order of decreasing acid strength of the following compounds.(I)(V)
1 V \(>\) IV \(>\) II \(>\) I \(>\) III
2 II \(>\) IV \(>\) III \(>\) I \(>\) V
3 IV \(>\) V \(>\) III \(>\) II \(>\) I
4 V \(>\) IV \(>\) III \(>\) II \(>\) I
Explanation:
Phenol acidic strength is directly proportional to -I. effect group and inversely proportional to \(+\mathrm{I}\). effect group.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323263
The correct order of \(\mathrm{pK}_{\mathrm{a}}\) values for the following compound is
1 A \(>\) B \(>\) C \(>\) D
2 B \(>\) A \(>\) D \(>\) C
3 B \(>\) D \(>\) A \(>\) C
4 C \(>\) A \(>\) D \(>\) B
Explanation:
Higher the value of \({{\text{K}}_{\text{a}}}\) or lower the value of \(\mathrm{pK}_{\mathrm{a}}\), stronger will be the acid. Presence of electron donating groups reduces acidic nature of phenol. Presence of electron withdrawing group increases the acidic strength of phenol. Thus, order of acidic strength
323262
Mark the correct order of decreasing acid strength of the following compounds.(I)(V)
1 V \(>\) IV \(>\) II \(>\) I \(>\) III
2 II \(>\) IV \(>\) III \(>\) I \(>\) V
3 IV \(>\) V \(>\) III \(>\) II \(>\) I
4 V \(>\) IV \(>\) III \(>\) II \(>\) I
Explanation:
Phenol acidic strength is directly proportional to -I. effect group and inversely proportional to \(+\mathrm{I}\). effect group.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323263
The correct order of \(\mathrm{pK}_{\mathrm{a}}\) values for the following compound is
1 A \(>\) B \(>\) C \(>\) D
2 B \(>\) A \(>\) D \(>\) C
3 B \(>\) D \(>\) A \(>\) C
4 C \(>\) A \(>\) D \(>\) B
Explanation:
Higher the value of \({{\text{K}}_{\text{a}}}\) or lower the value of \(\mathrm{pK}_{\mathrm{a}}\), stronger will be the acid. Presence of electron donating groups reduces acidic nature of phenol. Presence of electron withdrawing group increases the acidic strength of phenol. Thus, order of acidic strength
323262
Mark the correct order of decreasing acid strength of the following compounds.(I)(V)
1 V \(>\) IV \(>\) II \(>\) I \(>\) III
2 II \(>\) IV \(>\) III \(>\) I \(>\) V
3 IV \(>\) V \(>\) III \(>\) II \(>\) I
4 V \(>\) IV \(>\) III \(>\) II \(>\) I
Explanation:
Phenol acidic strength is directly proportional to -I. effect group and inversely proportional to \(+\mathrm{I}\). effect group.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323263
The correct order of \(\mathrm{pK}_{\mathrm{a}}\) values for the following compound is
1 A \(>\) B \(>\) C \(>\) D
2 B \(>\) A \(>\) D \(>\) C
3 B \(>\) D \(>\) A \(>\) C
4 C \(>\) A \(>\) D \(>\) B
Explanation:
Higher the value of \({{\text{K}}_{\text{a}}}\) or lower the value of \(\mathrm{pK}_{\mathrm{a}}\), stronger will be the acid. Presence of electron donating groups reduces acidic nature of phenol. Presence of electron withdrawing group increases the acidic strength of phenol. Thus, order of acidic strength
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