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Answer:
1. Acids: Tomato juice, tamarind juice, curd, raw mangoes
Bases: toothpaste, soap solution
2. Mineral acids are artificially made acids made from minerals
3. Mineral acids: fizzy drinks(carbonic acid),
Natural acids: Acetic acid, lactic acid, citric acid, tartaric acid, formic acid
5.Acids are sour to taste and their pH is always less than 7
6. Mineral acids:- Hydrochloric acid, sulphuric acid, nitric acid
7. (1) Mg(OH)2 + H2
(2) water and salt are formed
(3) Blue litmus turns red
(4) produces carbon dioxide
8. indicator is a compound that changes its colour at a specific pH value or in the presence of a particular substance and can be used to monitor acidity, alkalinity, or the progress of a reaction. Eg. litmus paper, methyl orange.
9. A substance that is not acidic or basic is described as a neutral substance.
10. Ammonia is a base.
11. Acidity is caused due to excess production of acid in the stomach by the gastric glands. Antacids are substances that are basic in nature and are used to cure acidity.
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