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Chemistry

Chemistry
Which of the following is used for refrigeration?

Phosphine
Sulphur dioxide
Chlorine
Freon

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Chemistry
Air shows the property of

None of these
O2
N2
Both A and B

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Chemistry
Which is not a green house gas ?

Chlorofluorocarbons
N2O
CO2
CH4

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Chemistry
Natural rubber is the polymer of :

Butadiene
Ethylene
Styrene
Isoprene

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Chemistry
Chemical name of bleaching powder is :

Calcium bi chloride
Calcium chloro hypochlorite
Calcium chlorate
Calcium hypochlorite

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Chemistry
The Fungus which is used in the alcohol industry is

Yeast
Mushroom
Candida Aibicans
Rhizopus

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