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Chemistry

Chemistry
Among the following the hardest metal is

Platinum
Tungsten
Iron
Gold

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Chemistry
Zinc sulphide is commonly used as

Rodenticide
Herbicide
Fungicide
Deodorant

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Chemistry
Which of the following is an antidiabatic drug?

Insulin
Penicillin
Aspirin
Chloroquine

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Chemistry
Which one of the following is used as a sowing agent in the preparation of soft drinks?

Boric acid
Phosphoric acid
Phosphorus acid
Salicylic acid

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Chemistry
The most abundant inert gas in the atmosphere is

Argon
Krypton
Helium
Neon

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Chemistry
Nitrification is the biological process of converting

Ammonia into N2
Ammonia into nitrite
N2 into nitrate
N2into nitrite

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