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Chemistry

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

Abrasion
Passivation
Erosion
Corrosion

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Chemistry
Which among the following is pure matter ?

Carbon–dioxide
Air
Iron
Brass

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Chemistry
Which of the following metals occurs in free state ?

Copper
Lead
Zinc
Iron

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Chemistry
The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of

discovery of elements
metallurgy
atomic structure
periodic table of contents

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Chemistry
Which of the following is not a greenhouse gas ?

Chlorofluorocarbon
Nitric oxide
Hydrogen
Carbon dioxide

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Chemistry
The first metal used by man was

copper
gold
iron
bronze

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MORE MCQ ON Chemistry

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