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Chemistry

Chemistry
The process which does not evolve CO2 in air is

Photosynthesis
Organic delay
Breathing
Burning

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Chemistry
What is Zeolite?

Dehydrated Aluminosilicate
Hydrated Aluminosilicate
Dehydrated Calcium Sulphate
Hydrated Calcium Sulphate

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Chemistry
Silk fibre chemically is :

Protein
Cellulose
Fat
Carbohydrate

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Chemistry
Which one is a soluble salt in H2O

Zn(OH)2
CaCl2
CuS
PbCl2

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Chemistry
Poison used for killing rats is

Calcium phosphide (Ca3P2)
Magnesium nitride (Mg3N2)
Zinc phosphide (Zn3P2)
Magnesium phosphide (Mg3P2)

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Chemistry
The buffer action of blood is due to the presence of

CI– and [HCO3]–
CI– and [CO3]2–
[HCO3]– and H2CO3
HCI and NaCI

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