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Chemistry

Chemistry
Which one is heaviest naturally-occurring element of the periodic element

Uranium
Iron
Thorium
Rhodium

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Chemistry
Browning of paper in old books is caused by

Lack of aeration
Oxidation of cellulose
Frequent use
Collection of dust

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Chemistry
Carbon footprint can be reduced by

Using energy efficient appliances
All of these
Commuting by public transport
Recycling waste materials

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Chemistry
Milk is

Suspension
Emulsion
Foam
Gel

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Chemistry
The manufacturing of iron from iron ore involves the process of

Electrolysis
Oxidation
Reduction
Fractional distillation

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Chemistry
The metal used to recover copper from a solution of copper sulphate is

Fe
Hg
Na
Ag

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MORE MCQ ON Chemistry

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