CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317335
The distillation technique most suited for separating glycerol from pent-1-yne in the soap industry is:
1 Steam distillation
2 Distillation under reduced pressure
3 Simple distillation
4 Fractional distillation
Explanation:
Pent-1-yne and glycerol are separated by distillation under reduced pressure. Under the reduced pressure the liquid boil at low temperature and the temperature of decomposition will not reach. e.g., glycerol boils at \(290^{\circ} \mathrm{C}\) with decomposition but at reduced pressure it boils at \(180^{\circ} \mathrm{C}\) without decomposition.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317336
Which statement apply best to vacuum distillation?
1 Distil liquids quickly with decomposition
2 It is very easy to distill
3 Distil liquid to avoid decomposition
4 None
Explanation:
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
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:
Petroleum oil contains hydrocarbons of variable chain length which differ lightly in their boiling point. Hence to separate, the petroleum vapours are passed into a long tower with large plates arranged vertically at \(400^{\circ} \mathrm{C}\). As vapours ascend they cool down and various compounds are collected at different heights. This is dfractional distillation. Repeated distillation involve repeating simple distillation to purify a substance. So, the option (3) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317338
A mixture of acetone and methanol can be separated by
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CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317335
The distillation technique most suited for separating glycerol from pent-1-yne in the soap industry is:
1 Steam distillation
2 Distillation under reduced pressure
3 Simple distillation
4 Fractional distillation
Explanation:
Pent-1-yne and glycerol are separated by distillation under reduced pressure. Under the reduced pressure the liquid boil at low temperature and the temperature of decomposition will not reach. e.g., glycerol boils at \(290^{\circ} \mathrm{C}\) with decomposition but at reduced pressure it boils at \(180^{\circ} \mathrm{C}\) without decomposition.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317336
Which statement apply best to vacuum distillation?
1 Distil liquids quickly with decomposition
2 It is very easy to distill
3 Distil liquid to avoid decomposition
4 None
Explanation:
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
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:
Petroleum oil contains hydrocarbons of variable chain length which differ lightly in their boiling point. Hence to separate, the petroleum vapours are passed into a long tower with large plates arranged vertically at \(400^{\circ} \mathrm{C}\). As vapours ascend they cool down and various compounds are collected at different heights. This is dfractional distillation. Repeated distillation involve repeating simple distillation to purify a substance. So, the option (3) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317338
A mixture of acetone and methanol can be separated by
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317335
The distillation technique most suited for separating glycerol from pent-1-yne in the soap industry is:
1 Steam distillation
2 Distillation under reduced pressure
3 Simple distillation
4 Fractional distillation
Explanation:
Pent-1-yne and glycerol are separated by distillation under reduced pressure. Under the reduced pressure the liquid boil at low temperature and the temperature of decomposition will not reach. e.g., glycerol boils at \(290^{\circ} \mathrm{C}\) with decomposition but at reduced pressure it boils at \(180^{\circ} \mathrm{C}\) without decomposition.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317336
Which statement apply best to vacuum distillation?
1 Distil liquids quickly with decomposition
2 It is very easy to distill
3 Distil liquid to avoid decomposition
4 None
Explanation:
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
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:
Petroleum oil contains hydrocarbons of variable chain length which differ lightly in their boiling point. Hence to separate, the petroleum vapours are passed into a long tower with large plates arranged vertically at \(400^{\circ} \mathrm{C}\). As vapours ascend they cool down and various compounds are collected at different heights. This is dfractional distillation. Repeated distillation involve repeating simple distillation to purify a substance. So, the option (3) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317338
A mixture of acetone and methanol can be separated by
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317335
The distillation technique most suited for separating glycerol from pent-1-yne in the soap industry is:
1 Steam distillation
2 Distillation under reduced pressure
3 Simple distillation
4 Fractional distillation
Explanation:
Pent-1-yne and glycerol are separated by distillation under reduced pressure. Under the reduced pressure the liquid boil at low temperature and the temperature of decomposition will not reach. e.g., glycerol boils at \(290^{\circ} \mathrm{C}\) with decomposition but at reduced pressure it boils at \(180^{\circ} \mathrm{C}\) without decomposition.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317336
Which statement apply best to vacuum distillation?
1 Distil liquids quickly with decomposition
2 It is very easy to distill
3 Distil liquid to avoid decomposition
4 None
Explanation:
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
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:
Petroleum oil contains hydrocarbons of variable chain length which differ lightly in their boiling point. Hence to separate, the petroleum vapours are passed into a long tower with large plates arranged vertically at \(400^{\circ} \mathrm{C}\). As vapours ascend they cool down and various compounds are collected at different heights. This is dfractional distillation. Repeated distillation involve repeating simple distillation to purify a substance. So, the option (3) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317338
A mixture of acetone and methanol can be separated by