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Chemistry

Chemistry
White phosphorus is always kept under

Benzene
Water
Ether
Kerosene

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Chemistry
Which one of the following is not a cause for present global warming and climate change ?

CFC emission
Methane emission
Deforstation
Carbondioxide emission

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Chemistry
Aluminium can be purified by

Ozonolysis
Oxidation
Electrolysis
Distillation

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Chemistry
The constituents of automobile exhaust that can cause cancer is/are :

Polycyclic hydrocarbons
Carbon monoxide
Lead
Oxides of nitrogen

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Chemistry
Browning of paper in old books is caused by

Lack of aeration
Collection of dust
Frequent use
Oxidation of cellulose

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Chemistry
Silicon is used in

All of these
Transistors
Semiconductors
Solar energy devices

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MORE MCQ ON Chemistry

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