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Chemistry

Chemistry
KMnO4 can be used as a/an

Disinfectant
Insecticide
Fertiliser
Pesticide

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Chemistry
Which of the following appeared to be with a significant potential for accumulation through food chains ?

Parathion
DDT
Lindane
Carbary

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Chemistry
The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is

1.568 x 103
6.023 x 1019
6.023 x 1023
4.84 x 1017

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Chemistry
Which one of the following does not form oxyacid ?

Chlorine
Fluorine
Sulphur
Nitrogen

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Chemistry
The natural source of hydro-carbon is

Carbohydrates
Biomass
Crude oil
Coal

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Chemistry
The weight of 6.023 × 1022 atoms of carbon is

12 gms
1.2 gms
0.12 gms
120 gms

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MORE MCQ ON Chemistry

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