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Chemistry

Chemistry
The Bhopal tragedy was caused by the gas

Carbon monoxide
Methyl isocyanate
Chlorine
Phosgene

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Chemistry
Which of the following is a natural dye ?

Alizarin
Phenolphthalein
Crystal violet
Aniline blue

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Chemistry
Global warming is mainly due to accumulation of

Carbon monoxide
Oxides of sulphur
Oxides of nitrogen
Carbon dioxide

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Chemistry
Mixture can be

Heterogeneous
Both A and B
Homogeneous
Pure substance

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Chemistry
The main buffer system of the human blood is

CH3COOH - CH3COO-
NH2CONH2 - NH2CONH+
H2CO3 - HCO3
H2CO3 - CO32-

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Chemistry
High concentration hydrocarbon pollutants in atmospheric air causes

Reduced crop yield
Cancer
Silicosis
Respiratory diseases (e.g.asthma)

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