Exercise: Chemistry

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
No answer description is available. Let's discuss.
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
No answer description is available. Let's discuss.
The most commonly used bleaching agent is
A:
alcohol
B:
carbon dioxide
C:
chlorine
D:
sodium chlorine
Answer: C
No answer description is available. Let's discuss.
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
No answer description is available. Let's discuss.
The main buffer system of the human blood is
A:
H2CO3 - HCO3
B:
H2CO3 - CO32-
C:
CH3COOH - CH3COO-
D:
NH2CONH2 - NH2CONH+
Answer: A
No answer description is available. Let's discuss.
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