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Chemistry

Chemistry
The most abundant inert gas in the atmosphere is

Helium
Argon
Krypton
Neon

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Chemistry
For a spontaneous chemical process, the free energy change is

Negative
Positive
Zero
Depends on whether the reaction is exothermic or endothermic

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Chemistry
Persons working in cement plants and lime stone quarries are prone to disease like

Asthma
Cancer
Silicosis
Pneumoconiosis

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Chemistry
Which is the highest quality of hard coal?

Lignite
Anthracite
Bituminous
Peat

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Chemistry
In a period from Li to F, ionisation potential

Decreases
Remains same
Cannot be predicted
Increases

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Chemistry
Saccharin is made up of

Butane
Phenol
Propane
Toluene

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