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Chemistry

Chemistry
The number of hydrogen bonds between guanine and cytosine in DNA is

2
4
1
3

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Chemistry
Aerated water contains

NO2
H2
CO2
SO2

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Chemistry
The weight of 6.023 × 1022 atoms of carbon is

12 gms
0.12 gms
120 gms
1.2 gms

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Chemistry
What is a mixture of potassium nitrate, powdered charcoal and sulphur called?

Paint
Glass
Cement
Gun powder

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Chemistry
Non-stick kitchenwares are coated with

PVC
Silicon
Graphite
Teflon

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Chemistry
The next higher homologue of C6H14 is

C7H16
C7H12
C7H14
C6H12

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