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Chemistry

Chemistry
Mercury is emitted into air by

Steam engine
Coal fire
Burning coal
Burning garbage

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Chemistry
Which of the following metals causes Itai-Itai disease ?

Copper
Cadmium
Chromium
Cobalt

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Chemistry
The lightest gas which is non-inflammable is

Nitrogen
Hydrogen
Helium
Oxygen

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Chemistry
Vinegar made by fermentation from cane sugar contains

Lactic acid
Acetic acid
Citric acid
Palmitic acid

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Chemistry
Which substance is used to retard the setting action of cement?

CaO
Na2O + K2O
Al2O3
CaSO4, 2H2O

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Chemistry
Which of the following substance's smell is similar to Ethanoic acid?

Vinegar
Tomato juice
Kerosene
Lemon

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MORE MCQ ON Chemistry

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