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Chemistry

Chemistry
In an oxygen molecule, two atoms are united by

Four bonds
Two bonds
One bond
Three bonds

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Chemistry
Ozone depletion in the stratosphere is mainly caused by

Chlorogluorocarbons
NO
SO2
NO2

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Chemistry
The ore which is found in abundance in India is

bauxite
magnetite
monazite
fluorspar

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Chemistry
What is Zeolite?

Hydrated Aluminosilicate
Dehydrated Calcium Sulphate
Dehydrated Aluminosilicate
Hydrated Calcium Sulphate

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Chemistry
Number of6.023 × 1020 atoms present in one mole of a gas at STP is

6.023 × 1020
'6.023 × 10–23
'6.023 × 10–20
6.023 × 1023

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Chemistry
The percentage of carbon in cost iron is :

0.01 to 0.25
0.5 to 1.5
6 to 8
3 to 5

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MORE MCQ ON Chemistry

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