Exercise: General Science

Questions for: General Science

Actinides are the elements with atomic numbers from
A:
97 to 104
B:
101 to 115
C:
89 to 103
D:
36 from 43
Answer: C
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What is laughing gas?
A:
Nitrous Oxide
B:
Carbon monoxide
C:
Sulphur dioxide
D:
Hydrogen peroxide
Answer: A
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From which mineral is radium obtained?
A:
Rutile
B:
Haematite
C:
Limestone
D:
Pitchblende
Answer: D
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Which of the following are the ingredients of gun metal?
A:
Iron, Zinc, Titanium
B:
Iron, tin
C:
Iron, Brass, Tin
D:
Copper, Tin
Answer: D
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Sodium metal is kept under
A:
petrol
B:
alcohol
C:
water
D:
kerosene
Answer: D
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