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Chemistry

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

Passivation
Erosion
Abrasion
Corrosion

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Chemistry
Non-stick kitchenwares are coated with

PVC
Graphite
Teflon
Silicon

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Chemistry
Tetra ethyle lead (TEL) is

A reductant
A catalyst in burning fossil fuel
An antioxidant
An antiknock compound

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Chemistry
Gobar gas mainly contains

Methane
Carbon dioxide
Hydrogen sulphide
Carbon monoxide

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Chemistry
Silver halides are used in photographic plates because they are

Totally colourless
Soluble in hyposolution
Oxidised in air
Reduced by light

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Chemistry
What particles move around the nucleus of an atom and are negatively charged?

Positrons
Protons
Electrons
Neutrons

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