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Chemistry

Chemistry
Copper substances when exposed to air gains a green coating due to the formation of:

CuCO3 Cu(OH)2
CuO
CuSO4
Cu(NO3)2

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Chemistry
CNG used in automobiles to check pollution, mainly consists of

CO2
CH4
N2
H2

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Chemistry
Which metal is the heaviest in periodic table among the following ?

Os
W
Pt
Pb

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Chemistry
The metal extracted from Bauxite is :

Copper
Silver
Manganese
Aluminum

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Chemistry
The depletion of Ozone layer is mainly due to

Chlorofluorocarbons
Radioactive rays
Aviation fuels
Volcanic eruptions

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Chemistry
Tear gas is :

Bleaching powder
Nitrous oxide
Carbonyl chloride
Chloroprene

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MORE MCQ ON Chemistry

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