Chemistry
The acid which is secreted by the glands in the stomach wall is

Nitric acid
Hydrochloric acid
Phosphoric acid
Sulphuric acid

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Chemistry
Ammonial is a mixture of

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

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