323223
Ethers are made free from peroxide linkage on distilling impure sample with
1 Conc. \(\mathrm{HNO}_{3}\)
2 Conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
3 Conc. \(\mathrm{HCl}\)
4 None of these
Explanation:
Peroxides are decomposed on heating with \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323224
Assertion : Ethers behave as bases in the presence of mineral acids. Reason : It is due to the presence of lone pair of electrons on the oxygen.
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:
Ethers exhibit weak Lewis base nature in the presence of strong mineral acids by donating lone pairs to form oxonium ions. So the option (1) is correct.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323225
Ethers when dissolved in cold concentrated sulphuric acid form
1 Alkanoic acids
2 Oxonium slats
3 Alkanols
4 Alkyl hydrogen sulphates
Explanation:
Ethers with \(\mathrm{HCl}\) and \(\mathrm{H}_{2} \mathrm{SO}_{4}\) form oxonium salts.
MHTCET - 2021
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323226
An aromatic ether is not cleaved by HI even at \(525 \mathrm{~K}\). The compound is
Due to greater electronegativity of \({\text{s}}{{\text{p}}^{\text{2}}}\) hybridized carbon atoms, of the benzene ring, diaryl ethers are \({\text{(}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}{\text{ - O - }}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}{\text{)}}\) not attacked by nucleophiles like \({{\text{I}}^ - }{\text{.}}\)
323223
Ethers are made free from peroxide linkage on distilling impure sample with
1 Conc. \(\mathrm{HNO}_{3}\)
2 Conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
3 Conc. \(\mathrm{HCl}\)
4 None of these
Explanation:
Peroxides are decomposed on heating with \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323224
Assertion : Ethers behave as bases in the presence of mineral acids. Reason : It is due to the presence of lone pair of electrons on the oxygen.
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:
Ethers exhibit weak Lewis base nature in the presence of strong mineral acids by donating lone pairs to form oxonium ions. So the option (1) is correct.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323225
Ethers when dissolved in cold concentrated sulphuric acid form
1 Alkanoic acids
2 Oxonium slats
3 Alkanols
4 Alkyl hydrogen sulphates
Explanation:
Ethers with \(\mathrm{HCl}\) and \(\mathrm{H}_{2} \mathrm{SO}_{4}\) form oxonium salts.
MHTCET - 2021
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323226
An aromatic ether is not cleaved by HI even at \(525 \mathrm{~K}\). The compound is
Due to greater electronegativity of \({\text{s}}{{\text{p}}^{\text{2}}}\) hybridized carbon atoms, of the benzene ring, diaryl ethers are \({\text{(}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}{\text{ - O - }}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}{\text{)}}\) not attacked by nucleophiles like \({{\text{I}}^ - }{\text{.}}\)
323223
Ethers are made free from peroxide linkage on distilling impure sample with
1 Conc. \(\mathrm{HNO}_{3}\)
2 Conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
3 Conc. \(\mathrm{HCl}\)
4 None of these
Explanation:
Peroxides are decomposed on heating with \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323224
Assertion : Ethers behave as bases in the presence of mineral acids. Reason : It is due to the presence of lone pair of electrons on the oxygen.
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:
Ethers exhibit weak Lewis base nature in the presence of strong mineral acids by donating lone pairs to form oxonium ions. So the option (1) is correct.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323225
Ethers when dissolved in cold concentrated sulphuric acid form
1 Alkanoic acids
2 Oxonium slats
3 Alkanols
4 Alkyl hydrogen sulphates
Explanation:
Ethers with \(\mathrm{HCl}\) and \(\mathrm{H}_{2} \mathrm{SO}_{4}\) form oxonium salts.
MHTCET - 2021
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323226
An aromatic ether is not cleaved by HI even at \(525 \mathrm{~K}\). The compound is
Due to greater electronegativity of \({\text{s}}{{\text{p}}^{\text{2}}}\) hybridized carbon atoms, of the benzene ring, diaryl ethers are \({\text{(}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}{\text{ - O - }}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}{\text{)}}\) not attacked by nucleophiles like \({{\text{I}}^ - }{\text{.}}\)
323223
Ethers are made free from peroxide linkage on distilling impure sample with
1 Conc. \(\mathrm{HNO}_{3}\)
2 Conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
3 Conc. \(\mathrm{HCl}\)
4 None of these
Explanation:
Peroxides are decomposed on heating with \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323224
Assertion : Ethers behave as bases in the presence of mineral acids. Reason : It is due to the presence of lone pair of electrons on the oxygen.
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:
Ethers exhibit weak Lewis base nature in the presence of strong mineral acids by donating lone pairs to form oxonium ions. So the option (1) is correct.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323225
Ethers when dissolved in cold concentrated sulphuric acid form
1 Alkanoic acids
2 Oxonium slats
3 Alkanols
4 Alkyl hydrogen sulphates
Explanation:
Ethers with \(\mathrm{HCl}\) and \(\mathrm{H}_{2} \mathrm{SO}_{4}\) form oxonium salts.
MHTCET - 2021
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323226
An aromatic ether is not cleaved by HI even at \(525 \mathrm{~K}\). The compound is
Due to greater electronegativity of \({\text{s}}{{\text{p}}^{\text{2}}}\) hybridized carbon atoms, of the benzene ring, diaryl ethers are \({\text{(}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}{\text{ - O - }}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}{\text{)}}\) not attacked by nucleophiles like \({{\text{I}}^ - }{\text{.}}\)
