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Chemistry

Chemistry
Silica gel is a

Drying agent
Delicious food
Moisturizer
Flavouring agent

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Chemistry
The most abundant element by number in the living system is :

Nitrogen
Oxygen
Carbon
Hydrogen

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Chemistry
Acid rain is caused due to pollution of atmosphere by

None of these
Oxides of nitrogen and sulphur
Oxides of carbon and nitrogen
Oxides of nitrogen and phosphorous

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

0.25 mole
0.5 mole
0.2 mole
0.4 mole

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Chemistry
A mixture of water and alcohol can be separated by

Distillation
Decantation
Filtration
Evaporation

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Chemistry
What is a mixture of potassium nitrate, powdered charcoal and sulphur called?

Glass
Cement
Gun powder
Paint

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MORE MCQ ON Chemistry

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