323944
Which among the following compound has highest boiling point?
1 Hexanal
2 Propanal
3 Ethanal
4 Pentanal
Explanation:
Boiling point \(\alpha\) molecular mass. \(\therefore\) Hexanal has the highest boiling point.
MHTCET - 2021
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323945
Assertion : Chloral is a geminal diol. Reason : Chloral hydrate is an unstable compound.
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:
In chloral hydrate, the presence of three \(\mathrm{Cl}\) atoms with -I effect increases the magnitude of the positive charge on the carbonyl carbon atom. As a result, even a weak nuleophile like water attacks to form a hydrate. Moreover, there is weak intermolecular hydrogen bonding in the chloral hydrate which tends to increase it's stability. So the option (3) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323946
Formalin is
1 liquid formaldehyde
2 \(40 \%\) solution of formaldehyde in water
3 \(40 \%\) solution of formaldehyde in acetone
4 \(40 \%\) solution of formaldehyde in acetaldehyde
Explanation:
\(40 \%\) solution of formaldehyde in water is known as Formalin.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323947
Which of the following aldehyde has buttery odour?
323944
Which among the following compound has highest boiling point?
1 Hexanal
2 Propanal
3 Ethanal
4 Pentanal
Explanation:
Boiling point \(\alpha\) molecular mass. \(\therefore\) Hexanal has the highest boiling point.
MHTCET - 2021
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323945
Assertion : Chloral is a geminal diol. Reason : Chloral hydrate is an unstable compound.
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:
In chloral hydrate, the presence of three \(\mathrm{Cl}\) atoms with -I effect increases the magnitude of the positive charge on the carbonyl carbon atom. As a result, even a weak nuleophile like water attacks to form a hydrate. Moreover, there is weak intermolecular hydrogen bonding in the chloral hydrate which tends to increase it's stability. So the option (3) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323946
Formalin is
1 liquid formaldehyde
2 \(40 \%\) solution of formaldehyde in water
3 \(40 \%\) solution of formaldehyde in acetone
4 \(40 \%\) solution of formaldehyde in acetaldehyde
Explanation:
\(40 \%\) solution of formaldehyde in water is known as Formalin.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323947
Which of the following aldehyde has buttery odour?
323944
Which among the following compound has highest boiling point?
1 Hexanal
2 Propanal
3 Ethanal
4 Pentanal
Explanation:
Boiling point \(\alpha\) molecular mass. \(\therefore\) Hexanal has the highest boiling point.
MHTCET - 2021
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323945
Assertion : Chloral is a geminal diol. Reason : Chloral hydrate is an unstable compound.
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:
In chloral hydrate, the presence of three \(\mathrm{Cl}\) atoms with -I effect increases the magnitude of the positive charge on the carbonyl carbon atom. As a result, even a weak nuleophile like water attacks to form a hydrate. Moreover, there is weak intermolecular hydrogen bonding in the chloral hydrate which tends to increase it's stability. So the option (3) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323946
Formalin is
1 liquid formaldehyde
2 \(40 \%\) solution of formaldehyde in water
3 \(40 \%\) solution of formaldehyde in acetone
4 \(40 \%\) solution of formaldehyde in acetaldehyde
Explanation:
\(40 \%\) solution of formaldehyde in water is known as Formalin.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323947
Which of the following aldehyde has buttery odour?
323944
Which among the following compound has highest boiling point?
1 Hexanal
2 Propanal
3 Ethanal
4 Pentanal
Explanation:
Boiling point \(\alpha\) molecular mass. \(\therefore\) Hexanal has the highest boiling point.
MHTCET - 2021
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323945
Assertion : Chloral is a geminal diol. Reason : Chloral hydrate is an unstable compound.
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:
In chloral hydrate, the presence of three \(\mathrm{Cl}\) atoms with -I effect increases the magnitude of the positive charge on the carbonyl carbon atom. As a result, even a weak nuleophile like water attacks to form a hydrate. Moreover, there is weak intermolecular hydrogen bonding in the chloral hydrate which tends to increase it's stability. So the option (3) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323946
Formalin is
1 liquid formaldehyde
2 \(40 \%\) solution of formaldehyde in water
3 \(40 \%\) solution of formaldehyde in acetone
4 \(40 \%\) solution of formaldehyde in acetaldehyde
Explanation:
\(40 \%\) solution of formaldehyde in water is known as Formalin.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323947
Which of the following aldehyde has buttery odour?
