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Chemistry

Chemistry
Which one of the following nonmetals shows allotropy in the liquid state?

Bromine
Carbon
Sulphur
Phosphorous

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Chemistry
The common refrigerant in domestic refrigerator is

Freon
Nitrogen
Oxygen
Neon

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Chemistry
The oil used in the froth floatation process is

kerosene oil
pine oil
coconut oil
olive oil

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Chemistry
An emulsion is a colloid of a

Gas in a solid
Liquid in a liquid
Gas in a liquid
Liquid in a gas

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Chemistry
Smoke is formed due to

Solid dispresed in liquid
Gas dispersed in gas
Gas dispresed in solid
Solid dispersed in gas

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Chemistry
The elements with atomic numbers 9, 17, 35, 53, 85 are all

Halogens
Heavy metals
Noble gases
Light metals

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