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Chemistry

Chemistry
The “King of Metals” is :

Gold
Silver
Iron
Aluminium

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Chemistry
The example of oligosaccharide is

Sucrose
Cellulose
Ribose
Glucose

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Chemistry
Ultraviolet rays can be used in water treatment as

Precipitator
Hydrolyser
Flocculator
Disinfectant

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Chemistry
What is the atomic number of mercury

80
41
63
32

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Chemistry
High concentration hydrocarbon pollutants in atmospheric air causes

Reduced crop yield
Respiratory diseases (e.g.asthma)
Silicosis
Cancer

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Chemistry
Pyrethrin used in mosquito coil is obtained from

A bacterium
A seed plant
An insect
A fungus

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MORE MCQ ON Chemistry

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