CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317352
Assertion : Hot water is used for separation of benzoic acid from naphthalene. Reason : Whenever a crystal is formed it tends to leave out the impurities.
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:
Benzoic acid dissolves in hot water but naphthalene does not.Therefore, hot water is used for separation of benzoic acid from nephthalene. By crystalisation impurities can be removed. So, the option (2) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317353
Assertion : Thiophene present in commercial benzene as an impurity and can be removed by shaking the mixture with cold concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\). Reason : Thiophene is a heterocyclic aromatic 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:
Thiophene is (heterocyclic aromatic compound ) on shaking with concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\) being more reactive undergoes sulphonation and the thiophene-2-sulphonic acid thus formed dissolves in concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\). So, the option (2) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317354
Methods used for purification of organic compounds are based on
1 nature of compound and presence of impurity.
2 presence of impurity only.
3 neither on nature of compound nor on the impurity present.
4 nature of compound only.
Explanation:
The methods used for purification of organic compounds depend upon the nature of substance and the type of impurities present in it. So, the correct option is (1).
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317355
Which among the following purification methods is based on the principle of "Solubility" in two different solvents?
1 Differential extraction
2 Column chromatography
3 Sublimation
4 Distillation
Explanation:
Differential extraction is based on the principle of solubility of a compound in two different solvents. When an organic compound is present in an aqueous medium, it is separated by shaking it with an organic solvent in which it is more soluble than water. So, the correct option is (1).
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317356
How will you separate a solution (miscible) of benzene and \(\mathrm{CHCl}_{3}\) ?
1 Sublimation
2 Filtration
3 Distillation
4 Crystallisation
Explanation:
Fractional distillation is the method used to separate a mixture of two miscible liquids having slight difference in their boiling points. The more volatile liquid distills over first and is collected in a receiver. The two fractions are redistilled separately a number of times to ensure complete purity of the liquids.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317352
Assertion : Hot water is used for separation of benzoic acid from naphthalene. Reason : Whenever a crystal is formed it tends to leave out the impurities.
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:
Benzoic acid dissolves in hot water but naphthalene does not.Therefore, hot water is used for separation of benzoic acid from nephthalene. By crystalisation impurities can be removed. So, the option (2) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317353
Assertion : Thiophene present in commercial benzene as an impurity and can be removed by shaking the mixture with cold concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\). Reason : Thiophene is a heterocyclic aromatic 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:
Thiophene is (heterocyclic aromatic compound ) on shaking with concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\) being more reactive undergoes sulphonation and the thiophene-2-sulphonic acid thus formed dissolves in concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\). So, the option (2) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317354
Methods used for purification of organic compounds are based on
1 nature of compound and presence of impurity.
2 presence of impurity only.
3 neither on nature of compound nor on the impurity present.
4 nature of compound only.
Explanation:
The methods used for purification of organic compounds depend upon the nature of substance and the type of impurities present in it. So, the correct option is (1).
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317355
Which among the following purification methods is based on the principle of "Solubility" in two different solvents?
1 Differential extraction
2 Column chromatography
3 Sublimation
4 Distillation
Explanation:
Differential extraction is based on the principle of solubility of a compound in two different solvents. When an organic compound is present in an aqueous medium, it is separated by shaking it with an organic solvent in which it is more soluble than water. So, the correct option is (1).
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317356
How will you separate a solution (miscible) of benzene and \(\mathrm{CHCl}_{3}\) ?
1 Sublimation
2 Filtration
3 Distillation
4 Crystallisation
Explanation:
Fractional distillation is the method used to separate a mixture of two miscible liquids having slight difference in their boiling points. The more volatile liquid distills over first and is collected in a receiver. The two fractions are redistilled separately a number of times to ensure complete purity of the liquids.
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CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317352
Assertion : Hot water is used for separation of benzoic acid from naphthalene. Reason : Whenever a crystal is formed it tends to leave out the impurities.
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:
Benzoic acid dissolves in hot water but naphthalene does not.Therefore, hot water is used for separation of benzoic acid from nephthalene. By crystalisation impurities can be removed. So, the option (2) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317353
Assertion : Thiophene present in commercial benzene as an impurity and can be removed by shaking the mixture with cold concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\). Reason : Thiophene is a heterocyclic aromatic 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:
Thiophene is (heterocyclic aromatic compound ) on shaking with concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\) being more reactive undergoes sulphonation and the thiophene-2-sulphonic acid thus formed dissolves in concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\). So, the option (2) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317354
Methods used for purification of organic compounds are based on
1 nature of compound and presence of impurity.
2 presence of impurity only.
3 neither on nature of compound nor on the impurity present.
4 nature of compound only.
Explanation:
The methods used for purification of organic compounds depend upon the nature of substance and the type of impurities present in it. So, the correct option is (1).
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317355
Which among the following purification methods is based on the principle of "Solubility" in two different solvents?
1 Differential extraction
2 Column chromatography
3 Sublimation
4 Distillation
Explanation:
Differential extraction is based on the principle of solubility of a compound in two different solvents. When an organic compound is present in an aqueous medium, it is separated by shaking it with an organic solvent in which it is more soluble than water. So, the correct option is (1).
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317356
How will you separate a solution (miscible) of benzene and \(\mathrm{CHCl}_{3}\) ?
1 Sublimation
2 Filtration
3 Distillation
4 Crystallisation
Explanation:
Fractional distillation is the method used to separate a mixture of two miscible liquids having slight difference in their boiling points. The more volatile liquid distills over first and is collected in a receiver. The two fractions are redistilled separately a number of times to ensure complete purity of the liquids.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317352
Assertion : Hot water is used for separation of benzoic acid from naphthalene. Reason : Whenever a crystal is formed it tends to leave out the impurities.
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:
Benzoic acid dissolves in hot water but naphthalene does not.Therefore, hot water is used for separation of benzoic acid from nephthalene. By crystalisation impurities can be removed. So, the option (2) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317353
Assertion : Thiophene present in commercial benzene as an impurity and can be removed by shaking the mixture with cold concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\). Reason : Thiophene is a heterocyclic aromatic 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:
Thiophene is (heterocyclic aromatic compound ) on shaking with concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\) being more reactive undergoes sulphonation and the thiophene-2-sulphonic acid thus formed dissolves in concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\). So, the option (2) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317354
Methods used for purification of organic compounds are based on
1 nature of compound and presence of impurity.
2 presence of impurity only.
3 neither on nature of compound nor on the impurity present.
4 nature of compound only.
Explanation:
The methods used for purification of organic compounds depend upon the nature of substance and the type of impurities present in it. So, the correct option is (1).
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317355
Which among the following purification methods is based on the principle of "Solubility" in two different solvents?
1 Differential extraction
2 Column chromatography
3 Sublimation
4 Distillation
Explanation:
Differential extraction is based on the principle of solubility of a compound in two different solvents. When an organic compound is present in an aqueous medium, it is separated by shaking it with an organic solvent in which it is more soluble than water. So, the correct option is (1).
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317356
How will you separate a solution (miscible) of benzene and \(\mathrm{CHCl}_{3}\) ?
1 Sublimation
2 Filtration
3 Distillation
4 Crystallisation
Explanation:
Fractional distillation is the method used to separate a mixture of two miscible liquids having slight difference in their boiling points. The more volatile liquid distills over first and is collected in a receiver. The two fractions are redistilled separately a number of times to ensure complete purity of the liquids.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317352
Assertion : Hot water is used for separation of benzoic acid from naphthalene. Reason : Whenever a crystal is formed it tends to leave out the impurities.
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:
Benzoic acid dissolves in hot water but naphthalene does not.Therefore, hot water is used for separation of benzoic acid from nephthalene. By crystalisation impurities can be removed. So, the option (2) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317353
Assertion : Thiophene present in commercial benzene as an impurity and can be removed by shaking the mixture with cold concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\). Reason : Thiophene is a heterocyclic aromatic 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:
Thiophene is (heterocyclic aromatic compound ) on shaking with concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\) being more reactive undergoes sulphonation and the thiophene-2-sulphonic acid thus formed dissolves in concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\). So, the option (2) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317354
Methods used for purification of organic compounds are based on
1 nature of compound and presence of impurity.
2 presence of impurity only.
3 neither on nature of compound nor on the impurity present.
4 nature of compound only.
Explanation:
The methods used for purification of organic compounds depend upon the nature of substance and the type of impurities present in it. So, the correct option is (1).
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317355
Which among the following purification methods is based on the principle of "Solubility" in two different solvents?
1 Differential extraction
2 Column chromatography
3 Sublimation
4 Distillation
Explanation:
Differential extraction is based on the principle of solubility of a compound in two different solvents. When an organic compound is present in an aqueous medium, it is separated by shaking it with an organic solvent in which it is more soluble than water. So, the correct option is (1).
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317356
How will you separate a solution (miscible) of benzene and \(\mathrm{CHCl}_{3}\) ?
1 Sublimation
2 Filtration
3 Distillation
4 Crystallisation
Explanation:
Fractional distillation is the method used to separate a mixture of two miscible liquids having slight difference in their boiling points. The more volatile liquid distills over first and is collected in a receiver. The two fractions are redistilled separately a number of times to ensure complete purity of the liquids.
