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Chemistry

Chemistry
24 carat of diamond is equal to

95% mg
91% gold
200 mg
200 g

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Chemistry
The elements in the modern Periodic table are arranged according to their

Atomic Weight
Atomic number
Mass number
Neutron number

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Chemistry
White phosphorus is always kept under

Kerosene
Ether
Water
Benzene

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Chemistry
In a Carbonyl group a carbon atom makes double bond with

None of these
Oxygen
Hydrogen
Carbon

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Chemistry
Which one of the following is known as the 'brown coal'?

Bituminous
Anthracite
Coke
Lignite

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Chemistry
The gas used for filling weather balloons is

Nitrogen
Hydrogen
Air
Helium

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