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Fill in the blanks: 1. Benzoic acids are used for ………… 2. The word sour refers to ………… in Latin. 3. Bases are ………… in taste. 4. Chemical formulae of calcium oxide is ………… 5. Wasp sting contains ………… 6. Turmeric is used as a ………… 7. In acidic solution, the colour of the hibiscus indicator paper will change to ……… |
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Answer» 1. preservation of food 2. acidus 3. bitter 4. CaO 5. alkaline substance 6. indicator 7. deep pink or deep red |
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