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Exercise: Chemistry
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Questions for: Chemistry
The heat required to raise the temperature of body by 1 K is called
A:
specific heat
B:
thermal capacity
C:
water equivalent
D:
None of the above
Answer:
B
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The nucleus of a hydrogen atom consists of
A:
1 proton only
B:
1 proton + 2 neutron
C:
1 neutron only
D:
1 electron only
Answer:
A
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Post
The most commonly used bleaching agent is
A:
alcohol
B:
carbon dioxide
C:
chlorine
D:
sodium chlorine
Answer:
C
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The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is
A:
helium
B:
ozone
C:
oxygen
D:
methane
Answer:
B
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The main buffer system of the human blood is
A:
H
2
CO
3
- HCO
3
B:
H
2
CO
3
- CO
3
2-
C:
CH
3
COOH - CH
3
COO
-
D:
NH
2
CONH
2
- NH
2
CONH
+
Answer:
A
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