A. Length of contact
B. Volume of contact
C. Area of contact
D. all of above
Related Mcqs:
- Which of the following technique is used for the separation of insoluble particles from liquids ?
A. Filtration
B. Crystallization
C. Solvent extraction
D. Chromatography - In partially miscible liquids the two layers are___________________?
A. saturated solutions of each liquid
B. unsaturated solutions of each liquid
C. normal solution of each liquid
D. no layer formation takes place - Process used to separate insoluble particles from liquids is ___________ ?
A. Drying
B. Filtration
C. Sieving
D. Extraction - 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 - Which of the following technique is simple and efficient to purify a substance____________________?
A. Filtration
B. Sublimation
C. Crystallization
D. Solvent extraction - Direct conversion of solids into vapours is called ___________________?
A. Solvent extraction
B. sublimation
C. crystallization
D. vaporization - Without suction pump filtration is __________________?
A. Fast process
B. Slow process
C. Rapid process
D. All are possible - Size of filter paper is selected according to the amount of__________________?
A. solution
B. amount of insoluble solute
C. amount of soluble solute
D. Amount of solvent - Silica gel and alumina are used as __________________?
A. Mobile phase
B. Stationary phase
C. Mixed phase
D. Single phase - The solvent or mixture of solvents used for separation of compounds is called____________________?
A. Stationary phase
B. Mobile phase
C. Dynamic phase
D. Static phase
