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Chemistry

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

Corrosion
Passivation
Erosion
Abrasion

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Chemistry
Which among the following metals provides amphoteric oxide ?

Aluminium
Sodium
Calcium
Silver

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Chemistry
Which of the following type of coal has the lowest proportion of volatile matter ?

Peat
Lignite
Bituminous
Anthracite

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Chemistry
The inert gas used as beacon light is

Ar
Ne
He
Kr

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Chemistry
Which of the following is caused by the higher concentration of Nitrogen and Phosphorous ?

Alkalinity
Acidity
Eutrophication
Hardness

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Chemistry
Aerated water contains

H2
NO2
SO2
CO2

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MORE MCQ ON Chemistry

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