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Chemistry

Chemistry
24 carat of diamond is equal to

200 g
200 mg
95% mg
91% gold

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Chemistry
Number of neutrons in an atom of hydrogen is

Three
One
Zero
Two

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Chemistry
The substance which does not expand on going from liquid state to solid state is

Water
Cast-iron
Aluminium
Type metal

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Chemistry
The gas that causes suffocation and death when coal or coke is burnt in a closed room is

Methane
Carbon monoxide
Ethane
Carbon di-oxide

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Chemistry
Substance used as an anti freeze in radiators of automobiles is :

Methyl alcohol
Ethyl alcohol and H2O
Ethyl alcohol
Methyl alcohol and H2O

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Chemistry
Which one of the following vegetable oils is used in the manufacture of paints?

Palm oil
Linseed oil
Sunflower oil
Cottonseed oil

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