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Chapter 2
S Block Elements
Test - 5
1.
Radium
a) A rare radioactive metal
b) Unstable
c) CaSO
4
. - H
2
O
d) CaSO
4
. 2H
2
O
2.
Francium
a) CaSO
4
. 2H
2
O
b) Unstable
c) Epson Salt
d) Spodumene
3.
The formula for plaster of paris is
a) CaSO
2
. 2H
2
O
b) A rare radioactive metal
c) CaSO
2
. - H
2
O
d) Spodumene
4.
Sodium metal
a) Ceramic industry
b) Acetylene preparation
c) Down's Cell method
d) Fertilizer industry
5.
Sodium hydroxide
a) Down's Cell method
b) Nelson's method
c) Hall's process
d) Acetylene preparation
6.
Lime
a) Fertilizer industry
b) Ceramic industry
c) Acetylene preparation
d) Down's Cell method
7.
Gypsum
a) Hall's process
b) Fertilizer industry
c) Ceramic industry
d) Nelson's method
8.
Calcium Carbide
a) Nelson's method
b) Down's Cell method
c) Acetylene preparation
d) Hall's process
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