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Chemistry

Chemistry
Who developed the model of atomic structure ?

Bohr and Rutherford
Faraday
Alfred Nobel
Volta

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Chemistry
The tip of the match-stick contains

Phosphorus trichloride
Phosphorus pentoxide
White phosphorus
Red phosphorus

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Chemistry
In surgery, metal pins are used for joining together broken bones. These metal pins remain uncorroded in the body. What is the material of these pins?

Copper
Titanium
Iron
Aluminium

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Chemistry
Where does the oxygen that keeps us alive come from?

Water
Carbon dioxide
Carbonates absorbed from soil
Oxides of minerals

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Chemistry
The major use of sulphur is in the manufacture of

Fungicide
H2S
SO2
H2SO4

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Chemistry
The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind?

1/3
1/6
1/4
1/8

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MORE MCQ ON Chemistry

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