Chemistry
Sulphur dioxide present in the industrial chimney exhaust causes

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

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Chemistry
Ammonial is a mixture of

Aluminium powder and ammonium chloride
Aluminium powder and ammonium sulphate
Aluminium powder and ammonium nitrate
Aluminium powder and potassium nitrate

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