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Chemistry

Chemistry
Molality of pure water is

18
1.8
5.55
55.5

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Chemistry
What happens when a chemical bond is formed ?

More energy is released than is absorbed
Energy in always released
Energy is always absorbed
Energy is neither released nor absorbed

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Chemistry
When water itself combines chemically with some element or mineral it is called

Oxidation
Desilication
Hydration
Carbonation

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Chemistry
Formation of ozone hole is maximum over

Africa
Europe
India
Antarctica

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Chemistry
The Refrigerant 'FREON' is

Hydrofluosilicic Acid
Calcium Tetra Fluoride
Difluoro Dichloro Methane
Fluorspar and Felspar

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Chemistry
Nylon is a type of

Polyamide
Acrylic
Polyolefin
Polyester

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MORE MCQ ON Chemistry

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