Reactions of Ethers
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CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323240 Assertion :
The major products formed by heating \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{OCH}_{3}\) with \(\mathrm{HI}\) are \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{I}\) and \(\mathrm{CH}_{3} \mathrm{OH}\).
Reason :
Benzyl cation is more stable than methyl cation.

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.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323241 Tert-butyl methyl ether on heating with anhydrous \(\mathrm{HI}\) in ether gives

1 \(\mathrm{CH}_{3} \mathrm{OH}+\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CI}\)
2 \(\mathrm{CH}_{3} \mathrm{I}+\left(\mathrm{CH}_{3}\right)_{3} \mathrm{COH}\)
3 \(\mathrm{CH}_{3} \mathrm{I}+\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CI}\)
4 None of these
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323242 \(\mathrm{HBr}\) reacts with \(\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{OCH}_{3}\) under anhydrous conditions at room temperature to give:

1 \(\mathrm{H}_{3} \mathrm{C}-\mathrm{CHBr}-\mathrm{OCH}_{3}\)
2 \(\mathrm{BrCH}_{2}-\mathrm{CH}_{2}-\mathrm{OCH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CHO}\) and \(\mathrm{CH}_{3} \mathrm{Br}\)
4 \(\mathrm{BrCH}_{2} \mathrm{CHO}\) and \(\mathrm{CH}_{3} \mathrm{OH}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323243 Assertion :
tert-Butyl methyl ether on cleavage with \(\mathrm{HI}\) at \(373 \mathrm{~K}\) gives tert-butyl iodide and methanol.
Reason :
The reaction occurs by \(\mathrm{S}_{\mathrm{N}} 2\) mechanism.

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.
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CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323240 Assertion :
The major products formed by heating \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{OCH}_{3}\) with \(\mathrm{HI}\) are \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{I}\) and \(\mathrm{CH}_{3} \mathrm{OH}\).
Reason :
Benzyl cation is more stable than methyl cation.

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.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323241 Tert-butyl methyl ether on heating with anhydrous \(\mathrm{HI}\) in ether gives

1 \(\mathrm{CH}_{3} \mathrm{OH}+\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CI}\)
2 \(\mathrm{CH}_{3} \mathrm{I}+\left(\mathrm{CH}_{3}\right)_{3} \mathrm{COH}\)
3 \(\mathrm{CH}_{3} \mathrm{I}+\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CI}\)
4 None of these
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323242 \(\mathrm{HBr}\) reacts with \(\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{OCH}_{3}\) under anhydrous conditions at room temperature to give:

1 \(\mathrm{H}_{3} \mathrm{C}-\mathrm{CHBr}-\mathrm{OCH}_{3}\)
2 \(\mathrm{BrCH}_{2}-\mathrm{CH}_{2}-\mathrm{OCH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CHO}\) and \(\mathrm{CH}_{3} \mathrm{Br}\)
4 \(\mathrm{BrCH}_{2} \mathrm{CHO}\) and \(\mathrm{CH}_{3} \mathrm{OH}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323243 Assertion :
tert-Butyl methyl ether on cleavage with \(\mathrm{HI}\) at \(373 \mathrm{~K}\) gives tert-butyl iodide and methanol.
Reason :
The reaction occurs by \(\mathrm{S}_{\mathrm{N}} 2\) mechanism.

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.
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CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323240 Assertion :
The major products formed by heating \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{OCH}_{3}\) with \(\mathrm{HI}\) are \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{I}\) and \(\mathrm{CH}_{3} \mathrm{OH}\).
Reason :
Benzyl cation is more stable than methyl cation.

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.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323241 Tert-butyl methyl ether on heating with anhydrous \(\mathrm{HI}\) in ether gives

1 \(\mathrm{CH}_{3} \mathrm{OH}+\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CI}\)
2 \(\mathrm{CH}_{3} \mathrm{I}+\left(\mathrm{CH}_{3}\right)_{3} \mathrm{COH}\)
3 \(\mathrm{CH}_{3} \mathrm{I}+\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CI}\)
4 None of these
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323242 \(\mathrm{HBr}\) reacts with \(\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{OCH}_{3}\) under anhydrous conditions at room temperature to give:

1 \(\mathrm{H}_{3} \mathrm{C}-\mathrm{CHBr}-\mathrm{OCH}_{3}\)
2 \(\mathrm{BrCH}_{2}-\mathrm{CH}_{2}-\mathrm{OCH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CHO}\) and \(\mathrm{CH}_{3} \mathrm{Br}\)
4 \(\mathrm{BrCH}_{2} \mathrm{CHO}\) and \(\mathrm{CH}_{3} \mathrm{OH}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323243 Assertion :
tert-Butyl methyl ether on cleavage with \(\mathrm{HI}\) at \(373 \mathrm{~K}\) gives tert-butyl iodide and methanol.
Reason :
The reaction occurs by \(\mathrm{S}_{\mathrm{N}} 2\) mechanism.

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.
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CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323240 Assertion :
The major products formed by heating \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{OCH}_{3}\) with \(\mathrm{HI}\) are \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{I}\) and \(\mathrm{CH}_{3} \mathrm{OH}\).
Reason :
Benzyl cation is more stable than methyl cation.

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.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323241 Tert-butyl methyl ether on heating with anhydrous \(\mathrm{HI}\) in ether gives

1 \(\mathrm{CH}_{3} \mathrm{OH}+\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CI}\)
2 \(\mathrm{CH}_{3} \mathrm{I}+\left(\mathrm{CH}_{3}\right)_{3} \mathrm{COH}\)
3 \(\mathrm{CH}_{3} \mathrm{I}+\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CI}\)
4 None of these
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323242 \(\mathrm{HBr}\) reacts with \(\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{OCH}_{3}\) under anhydrous conditions at room temperature to give:

1 \(\mathrm{H}_{3} \mathrm{C}-\mathrm{CHBr}-\mathrm{OCH}_{3}\)
2 \(\mathrm{BrCH}_{2}-\mathrm{CH}_{2}-\mathrm{OCH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CHO}\) and \(\mathrm{CH}_{3} \mathrm{Br}\)
4 \(\mathrm{BrCH}_{2} \mathrm{CHO}\) and \(\mathrm{CH}_{3} \mathrm{OH}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323243 Assertion :
tert-Butyl methyl ether on cleavage with \(\mathrm{HI}\) at \(373 \mathrm{~K}\) gives tert-butyl iodide and methanol.
Reason :
The reaction occurs by \(\mathrm{S}_{\mathrm{N}} 2\) mechanism.

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.
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