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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