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Chemistry

Chemistry
The most commonly used bleaching agent is

sodium chlorine
chlorine
alcohol
carbon dioxide

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Chemistry
Nucleus of an atom consists of.

Neutron
Proton and Neutron
Proton
Electron, Proton and Neutron

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Chemistry
Colour imparted to the Bunsen flame by strontium salt is

Crimson red
Brick red
Apple-green
Bluish green

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Chemistry
Atomic number is the number equal to

Electrons
Protons
None of these
Neutrons

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Chemistry
Pollutant from motor car exhaust that causes mental disease is

Hg
SO2
Lead
NO2

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Chemistry
Spirit in contact with body gives cool sensation because it is :

Transparent
Highly volatile
A good conductor
Liquid

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