Experimental Techniques in Chemistry - 7
1.
The process of _____________ is used to separate insoluble particles from liquids.
a) Filtration
b) Filter crucible
c) Fluted filter paper
d) Filter paper
2.
The process of filtration is done through two possible ways namely 1._____________ 2.__________.
a) KmnO
4
or HCl
b) i. Filter paper ii. Filter crucible
c) i. CaCl
2
ii. Silca gel
d) i. Elements ii. Compounds
3.
The process of filtration can be increased by using a ___________.
a) Filter crucible
b) Fluted filter paper
c) Filtration
d) Filter paper
4.
The process of forming crystals is known as _____________.
a) Crystallization
b) Vacuum desiccator
c) Chromatography
d) Solvent Extration
5.
A crystal has a definite _________ shape.
a) Chromatography
b) Adsorption chromatography
c) Partition chromatography
d) Geometric
6.
___________ is the most reliable and safer method for drying crystals.
a) Filter crucible
b) Solid
c) Water
d) Vacuum desiccator
7.
_____________ and ___________ are used as drying agents in vacuum desiccator.
a) i. Gas ii. Liquid
b) i. Filter paper ii. Filter crucible
c) i. Elements ii. Compounds
d) i. CaCl
2
ii. Silca gel
8.
The process under which solid is directly converts into vapour state is known as _______
a) Solvent
b) Sublimation
c) Sulimation
d) Solvent Extration
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