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
✅ The correct answer is option A.
Experimental Techniques MCQs
2. Which of the following way in used for classification of chromatography?
A. Shape
B. Phase
C. Mechanism
D. All
✅ The correct answer is option D.
3. The fluted filter paper is used to
A. Filter hot solution
B. Avoid premature crystallization
C. Increase the rate of filtration
D. Decrease the area
✅ The correct answer is option C.
4. Safe and the most reliable method of drying crystals is through
A. Filter paper
B. Vacuum desiccators
C. Oven
D. None of these
✅ The correct answer is option B.
5. A substance having a very high vapour pressure at its melting point on heating will show
A. Melting
B. Sublimation
C. Decomposition
D. Condensation
✅ The correct answer is option B.
6. A process controlled by Distributive law is
A. Crystallization
B. Sublimation
C. Solvent extraction
D. Filtration
✅ The correct answer is option C.
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
✅ The correct answer is option B.
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
✅ The correct answer is option C.
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
✅ The correct answer is option C.
10. Identification of the components of a sample is
A. Quantitative analysis
B. Qualitative analysis
C. Stoichiometry
D. Physical chemistry
✅ The correct answer is option B.