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Chemistry

Chemistry
Concentration of a material which is lethal to 50% animal is called

ADI
LD50
NOAEL
LC50

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Chemistry
The chemical that is used to ripen mangoes is

Calcium sulphide
Calcium carbide
Calcium carbonate
Calcium chloride

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Chemistry
Thermal electricity is generated by using which of these ?

Coal, Natural Gas and Petroleum
None of these
Coal and Natural Gas only
Coal only

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Chemistry
Rock salt is a mineral containing

Potassium
Magnesium
Sodium
Iron

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Chemistry
Electric fuse is an alloy of

Copper and iron
Tin and lead
Carbon and tin
Zinc and lead

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Chemistry
Which one of the following does not contain Silver ?

Horn Silver
Ruby Silver
German Silver
Lunar Caustic

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MORE MCQ ON Chemistry

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