Question

U
DALIS)
UTULLUWING:
1. Acid Present in soft drinks:
2. Acid present in stomach:
3. Common name of caustic soda:
4. Taste of acids:
5. Gas released when metals react with dilute acids:
6. Gas released when bleaching powder is exposed to atmosphere:
7. A neutral substance important for survival of life:
8. Chemical with soapy touch and pH>7
9. Indicators made from lichens:
10. Common name of calcium hydroxide:
11. Gas released when metal carbonates or bicarbonates reach with dilute acids:
12. Chemical name of bleaching powder:
13. Substances which turn phenolphthalein pink:
14. Ingredients of Baking powder:
15. A substance sets into hard solid when mixed with water:
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Answer 1

Answer:

1. citric acid

2. hydrochloric acid

3. sodium hydroxide

4. Acids in water solutions show certain properties. They taste sour and turn litmus paper red. They react with metals like zinc to give off hydrogen

5. hydrogen gas

6. chlorine gas

7. water

8. alkali

9. litmus

10. slaked lime

11. carbon dioxide

12. calcium hypochlorite

13.  Ionized molecules attract other molecules with the opposite charge and repel those with the same charge

14. carbonate or bicarbonate and a weak acid

15. plaster of paris or gypsum