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Chemistry

Chemistry
How many electrons can be accommodated in d-orbital

8
3
6
10

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Chemistry
Surface water is a better source of drinking water because it is poor in

Dust
Algae
Arsenic
Bacteria

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Chemistry
The acid present in red ants is

Butyric acid
Acetic acid
Formic acid
Caproic acid

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Chemistry
Which one out of the following helps in burning ?

Carbon monoxide
Nitrogen
Carbon dioxide
Oxygen

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Chemistry
Muddy water is treated with alum in purification process, itis termed as :

Adsorption
Coagulation
Emulsification
Absorption

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Chemistry
Natural rubber is the polymer of :

Styrene
Ethylene
Butadiene
Isoprene

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