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Chemistry

Chemistry
Which of these acids is not organic in origin?

Oxalic acid
Sulphuric acid
Citric acid
Lactic acid

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Chemistry
Particulates (< 1 µm size) remaining suspended in air indefinitely and transported by wind currents are called

Aerosols
Smoke
Mists
Fumes

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Chemistry
The most suitable unit for expressing nuclear radius is :

Micron
Angstrom
Fermi
Nanometre

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Chemistry
Which among the following is not a characteristic of transition metals?

Tendency to gain electrons
Malleability
Low electronegativity
Low ionization energy

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Chemistry
The substance that is added to make natural rubber strong and more bouncy is

Sponge
Polythene
Chlorine
Sulphur

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Chemistry
Commercial nitric acid is coloured because it contains dissolved :

Nitrous oxide
Oxygen
Coloured impurities
Nitrogen dioxide

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