1) What is the biological name for the "food pipe"? a) Trachea b) Oesophagus c) Reflux d) Stomach 2) What is the chemical name of stomach acid? a) Sulphuric acid b) Nitric acid c) Hydrochloric acid d) Ethanoic Acid 3) What protects the stomach from acid attack? a) A mucus layer. b) An alkaline layer. c) A base layer. d) Salt in your food. 4) What is the main active ingriedient in indigestion tablets? a) Sodium hydroxide b) Phenol phthalein c) Sodium chloride d) Calcium carbonate 5) What are the products of the reaction when indigestion tablets react with stomach acid? a) Sodium chloride + Water b) Calcium chloride + Water + Carbon dioxide c) Calcium carbonate + Carbon dioxide d) Calcium sulphate + Hydrogen. 6) What are the symptoms of indigestion? a) Bad wind. b) Eggy burps. c) Heart burn. d) Liver failure.

Indigestion investigation

by Anonymous

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