Experimental Techniques in Chemistry - 16
1.
If hot saturated solution is cooled and solute does not crystallize out. It means that the solute is highly soluble.
a) True
b) False
2.
The solvent chosen for crystallization may chemically react with the solute.
a) False
b) True
3.
If no solvent is found suitable for crystallization a combination of two immiscible solvents may be used.
a) True
b) False
4.
Hot water funnel is used for premature crystallization of solute.
a) False
b) True
5.
Size of crystal formed depends upon the nature of impurities in the solvent.
a) True
b) False
6.
Shape of crystal formed depends upon the rate of cooling.
a) True
b) False
7.
Mother liquor left after crystallization may be further cooked to get fresh crop of crystals.
a) True
b) False
8.
CaCl
2
.2H
2
O is used in vacuum desiccator.
a) False
b) True
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