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Chemistry

Chemistry
The deterioration of a metal by an electrochemical process is commonly termed as

Erosion
Corrosion
Abrasion
Passivation

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Chemistry
Which one of the following chemicals helps in fruit ripening?

Atrazine
Malathion
Isoproturan
Ethephon

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Chemistry
The wire of flash bulb is made of:

Barium
Copper
Magnesium
Silver

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Chemistry
Higher concentration of nitrogen dioxide in atmosphere air causes

Bronchitis
Corrosion
Asphyxiation
Cancer

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Chemistry
The metal does not give H2 on treatment with dilute HCL is

Ag
Fe
Ca
Zn

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

Smoke
Fumes
Mists
Aerosols

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