Exercise: Chemistry

Questions for: Chemistry

The formula C6H5-CO-CH3 represents
A:
Acetone
B:
Acetic acid
C:
Acetophenone
D:
Phenyl acetate
Answer: C
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The maximum number of covalent formed by nitrogen is
A:
1
B:
2
C:
3
D:
4
Answer: D
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The mass number of an atom is equal to
A:
the number of protons
B:
the number of protons and electrons
C:
the number of nucleons
D:
the number of neutrons
Answer: C
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Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be
A:
2 : 16 : 2
B:
2 : 16 : 1
C:
1 : 16 : 2
D:
1 : 1 : 1
Answer: C
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The National Chemical Laboratory is situated in
A:
New Delhi
B:
Bangalore
C:
Pune
D:
Patna
Answer: C
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