| 1. | Consider reaction: AgNO₃ + NaCl → AgCl + NaNO₃. state of NaNO₃ will be |
| a. | solid |
| b. | aqueous |
| c. | gaseous |
| d. | liquid |
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Answer: (b).aqueous
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| 2. | If hydrogen (H) of an acid (H+) is partially replaced by a metal, it forms |
| a. | neutral oxides |
| b. | amphoteric oxides |
| c. | acid salt |
| d. | salt |
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Answer: (c).acid salt
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| 3. | Incorrect statement is: Fizzy sweets _______ |
| a. | contain sodium hydrogen acetate. |
| b. | makes tongue feel cold. |
| c. | eating is an endothermic reaction. |
| d. | are produced in chewing food. |
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Answer: (a).contain sodium hydrogen acetate.
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| 4. | Sufficient hemoglobin in blood can be tested by adding a drop of |
| a. | Zinc Sulphate |
| b. | Copper Sulphate |
| c. | Magnesium Sulphate |
| d. | Potassium Sulphate |
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Answer: (b).Copper Sulphate
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| 5. | If metal hydroxide (-OH-) and acid (H+) reaction to form Potassium Nitrate (KNO₃), other by-product will be |
| a. | water |
| b. | hydrogen |
| c. | Carbon dioxide |
| d. | water and carbon dioxide |
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Answer: (a).water
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