Q10 of 270 Page 66

Name one natural source of each of the following acids:

(a) Citric acid (b) Oxalic acid


(c) Lactic acid (d) Tartaric acid

(a) Citric acid- Lemons and berries.

(b) Oxalic acid- Beets and Tomatoes


(c) Lactic acid- Milk and milk products such as yogurt and sour cream.


(d) Tartaric acid- Grapes and Tamarind.



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8 Name the gas evolved when dilute HCL reacts with sodium hydrochloric. How is it recognized? 9 Give the names and formulae of two strong acids and two weak acids. 11 Name one animal and one plant whose stings contain formic acid (or methanoic acid). 12 How is the concentration of hydronium ions (H3O+) affected when the solution of an acid is diluted?