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Chemistry

Chemistry
What are the number of moles of CO2 which contains 16 g of oxygen?

0.5 mole
0.2 mole
0.25 mole
0.4 mole

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Chemistry
Besides CO2, the other green house gas is

Ar Ar
N2 N2
O2
CH4

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Chemistry
The substance that is added to make natural rubber strong and more bouncy is

Chlorine
Sulphur
Sponge
Polythene

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Chemistry
The items amenable to detection by soft x-rays are

contrabands
lead in bullets
genuine coins from counterfeit coins
narcotics

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Chemistry
Bone ash contains

Calcium sulphate
Phosphoric sulphate
Calcium phosphate
Calcium hypophosphate

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Chemistry
Brass is a

Heterogeneous mixture
Homogeneous mixture
Compound
Element

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MORE MCQ ON Chemistry

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