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Chemistry

Chemistry
Silicon is used in

Transistors
Semiconductors
Solar energy devices
All of these

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

Fractional distillation
Oxidation
Electrolysis
Reduction

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Chemistry
Colour imparted to the Bunsen flame by strontium salt is

Brick red
Crimson red
Bluish green
Apple-green

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Chemistry
The quality of petrol is expressed in terms of

Gold number
Added unlead compounds
Octane number
Cetane number

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Chemistry
Limestone is a raw material used by which industry?

Petrochemicals
Fertilizers
Cement
Aluminium

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

Oxides of nitrogen
Carbon monoxide
Polycyclic hydrocarbons
Lead

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MORE MCQ ON Chemistry

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