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
mnsoomro
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