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Chemistry

Chemistry
Stalactites and Stalagmites form due to the precipitation of :

MgCO3
MgCl2
CaCl2
CaCO3

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Chemistry
Chemical name of Gammaxane is

Aniline
Chloro benzene
Toluene
Benzene hexachloride

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

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

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Chemistry
The process which does not evolve CO2 in air is

Photosynthesis
Organic delay
Breathing
Burning

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Chemistry
When iron rusts, its weight

First increases and then decreases
Remains the same
Increases
Decreases

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Chemistry
Which of the following is the strongest base in aqueous solution ?

Ethylamine
Triethylamine
Ammonia
Diethylamine

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