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In solvent extraction ether is used to separate products of organic synthesis from________________?
A. water B. iodine C. hydrochloric acid D. gases Submitted by :- Jamil Ahmed
The use of CaCl2 and PCl5 in the process of crystallization is as a____________________?
A. oxidizing agent B. reducing agent C. drying agent D. coloring agent Submitted by :- Jamil Ahmed
Without suction pump filtration is __________________?
A. Fast process B. Slow process C. Rapid process D. All are possible Submitted by :- Jamil Ahmed
Direct conversion of solids into vapours is called ___________________?
A. Solvent extraction B. sublimation C. crystallization D. vaporization Submitted by :- Jamil Ahmed
Which is not a sublime material_______________?
A. Iodine B. Benzoic acid C. Ammonium chloride D. Potash alum Submitted by :- Jamil Ahmed
Selection of filter paper depends on size of particles to be________?
A. filtered B. dried C. decolorized D. decanted Submitted by :- Jamil Ahmed
The major steps involved in complete quantitative analysis are _____?
A. 2 B. 3 C. 4 D. 5 Submitted by :- Jamil Ahmed
Which is not related pair of term used in analytical techniques______?
A. Filtrate residue B. Sublimate sublimation C. Drying desiccator D. Separating funnel mother liquor Submitted by :- Jamil Ahmed
Sintered glass is a porous material used for ___________________?
A. absorption B. adsorption C. filtration D. sublimation Submitted by :- Jamil Ahmed
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 Submitted by :- Jamil Ahmed