Chemistry 11 Chapter 2
Experimental Tehniques In Chemistery
Test 11
1.
Solvent should be such that it should not react_______ with the solute
a) Chemically
b) Temporary
c) Permanently
d) Physically
2.
If the perforations are covered with_______ then it may be used to filter solutions of conc.HCl and solutions of KMnO4
a) Glass
b) Asbestos
c) Filter papers
d) Pores
3.
Solvent should be such that it should not react chemically with the________
a) none of these
b) solutions
c) Solute
d) Solvent
4.
Solvent should be such that it should
a) Inexpensive
b) Expensive
c) Both
d) Cheap
5.
The basic principle of crystaliztion is that ________ should be soluble in suitable solvent at hiher
a) Solvent
b) Precipitate
c) Residue
d) Solute
6.
Sintered glass crucible is a glass crucible with porous _______ sealed into the bottom
a) Asbestos
b) Glass disc
c) Filter paper
d) None of these
7.
The bottom of Gooch crucible is covered with?
a) Asbestos
b) Glass
c) Paper pulp
d) Filter paper without cutting
8.
Solvent should be such that it should easily
a) Remove
b) Released
c) Absorbed
d) None of these
9.
The basic principle of crystaliztion is that excess amount of heat thrown out when it is_____
a) Remained as it is
b) Cooled
c) Heated
d) None of these
10.
Quick filteration can be done by placing Gooch crucible in
a) Absorption apparatus
b) Suction fitering apparatus
c) None of these
d) Suction apparatus
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