A liquid compound (X) can be purified by steam distillation only if it is:
1. Steam volatile, immiscible with water.
2. Not steam volatile, miscible with water.
3. Steam volatile, miscible with water.
4. Not steam volatile, immiscible with water.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the type of mixture of compounds in Column I with the technique of separation/purification given in column II.
Column I | Column II |
A. Two solids which have different solubilities in a solvent and which do not undergo a reaction when dissolved in it | 1. Steam distillation |
B. Liquid that decomposes at its boiling point | 2. Fractional distillation |
C. Steam volatile liquid | 3. Crystallisation |
D. Two liquids that have boiling points close to each other | 4. Distillation under reduced pressure |
Codes:
A | B | C | D | |
1. | 3 | 4 | 1 | 2 |
2. | 1 | 2 | 3 | 4 |
3. | 1 | 4 | 3 | 2 |
4. | 4 | 1 | 3 | 2 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf a liquid compound decomposes at or below its boiling point, then the best method for purification is-
1. Distillation under reduced pressure
2. Azeotropic distillation
3. Gas chromatography
4. Sublimation
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPaper chromatography is an example of-
1. Partition chromatography
2. Thin layer chromatography
3. Column chromatography
4. Adsorption chromatography
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHalogen in an organic compound that can be detected by -
1. | Duma's method | 2. | Carius method |
3. | Kjeldahl's method | 4. | Chromatography |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe latest technique for isolation, purification and separation of organic compounds is -
1. | Crystallisation | 2. | Distillation |
3. | Sublimation | 4. | Chromatography |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe method that can be used to separate two compounds with different solubilities in a solvent is-
1. Distillation
2. Isolation
3. Fractional crystallization
4. Filtration
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyDuring the hearing of a court case, the judge suspected that some changes in the documents had been carried out. He asked the forensic department to check the ink used at two different places. The technique that can give the best results is-
1. | Column chromatography | 2. | Solvent extraction |
3. | Distillation | 4. | Thin layer chromatography |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe purification method based on the difference in solubilities of the compound and the impurities in a solvent is -
1. Crystallisation
2. Distillation
3. Chromatography
4. Isolation
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe best method used for the separation of naphthalene and benzoic acid from their mixture is -
1. Sublimation
2. Chromatography
3. Crystallisation
4. Distillation
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology