Entry Test MCQ :: Experimental Techniques
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1. |
Which of the following technique is used for the separation of insoluble particles from liquids? |
A. |
Filtration |
B. |
Crystallization |
C. |
Solvent extraction |
D. |
Chromatography |
Answer: Option A
Explanation:
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2. |
Which of the following way in used for classification of chromatography? |
Answer: Option D
Explanation:
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3. |
Fluted filter paper is used to |
A. |
Filter hot solution |
B. |
Avoid premature crystallization |
C. |
Increase the rate of filtration |
D. |
Decrease the area |
Answer: Option C
Explanation:
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4. |
Safe and the most reliable method of drying crystals is through |
A. |
Filter paper |
B. |
Vacuum desiccators |
C. |
Oven |
D. |
None of these |
Answer: Option B
Explanation:
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5. |
A substance having very high vapour pressure at its melting point on heating will show |
A. |
Melting |
B. |
Sublimation |
C. |
Decomposition |
D. |
Condensation |
Answer: Option B
Explanation:
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6. |
A process controlled by Distributive law is |
A. |
Crystallization |
B. |
Sublimation |
C. |
Solvent extraction |
D. |
Filtration |
Answer: Option C
Explanation:
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7. |
A technique of partition chromatography in which the solvent is in a pool at the bottom of container |
A. |
Adsorption chromatography |
B. |
Ascending chromatography |
C. |
Radial chromatography |
D. |
Descending chromatography |
Answer: Option B
Explanation:
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8. |
Different components of a mixture have different Rf values due to |
A. |
Polar solvent used |
B. |
Combination of solvents used |
C. |
Their different distribution coefficients in the solvent |
D. |
Distributive law |
Answer: Option C
Explanation:
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9. |
Branch of chemistry that deals with the complete qualitative and quantitative analysis of a substance is |
A. |
Stoichio chemistry |
B. |
Physical chemistry |
C. |
Analytical chemistry |
D. |
Quantum chemistry |
Answer: Option C
Explanation:
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10. |
Identification of the components of a sample is |
A. |
Quantitative analysis |
B. |
Qualitative analysis |
C. |
Stoichiometry |
D. |
Physical chemistry |
Answer: Option B
Explanation:
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