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Chemistry

Chemistry
The gas liberated in the Bhopal gas tragedy was:

Ethylene
Methyl isocynate
Acetylene
Pheynl isocynate

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Chemistry
Chemical formula of washing soda is

NaHCO3
Na2CO3.10H2O
Na2SO4.10H2O
Ca(OH)2

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Chemistry
Sulphur dioxide bleaches colouring matter by :

Dehydration
Oxidation
Decomposition
Reduction

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Chemistry
The ore of Aluminium is

Chalco pyrites
Bauxite
Fluorspar
Hematite

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Chemistry
Sulphur dioxide present in the industrial chimney exhaust causes

All of these
Respiratory and lung disease
Corrosion building materials
Reduction in plant's productivity owing to acid rain

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Chemistry
Milk is a colloidal system in which:

Fat is dispersed in water
Water is dispersed in fat
Fat is dissolved
Fat and water are dispersed in each other

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