Without suction pump filtration is __________________?
A. Fast process B. Slow process C. Rapid process D. All are possible
Chemistry MCQs
The use of CaCl2 and PCl5 in the process of crystallization is as a____________________?
A. oxidizing agent B. reducing agent C. drying agent D. colouring agent
In solvent extraction ether is used to separate products of organic synthesis from________________?
A. water B. iodine C. hydrochloric acid D. gases
In crystallization if the solvent is inflammable then direct heating is________________?
A. needed B. avoided C. depends on temperature D. crystallization does not involve heating
Rate of filtration can be increased by applying gentle suction______________?
A. Gooch crucible B. Filter paper C. Sintered crucible D. All of the above
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
The tip of funnel should touch the wall of the breaker in order to avoid____________________?
A. Inconsistent flow of filtration B. splashing C. premature crystallization D. all of above
The technique used to separate components of mixture in solid phase ?
A. Crystallization B. Filtration C. Sublimation D. Solvent extraction
Identification of the components of a sample is_________________?
A. Quantitative analysis B. Qualitative analysis C. Stoichiometry D. Physical chemistry
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