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Materials: Metals and Non-Metals
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17/04/2021 9:19 am
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A set of metals in order of their increasing chemical reactivity is given below:
silver, copper, lead, iron, zinc, magnesium and sodium.
1. Which of the above metals is stored in kerosene?
2. Which metals will react with cold water?
3. Which gas will be liberated when metals react with cold water?
4. Which of the metals will react with oxygen when heated?
5. Which of the metals become black in the presence of hydrogen sulphide?
1 Answer
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17/04/2021 9:21 am
1. Sodium
2. Sodium
3. Hydrogen
4. Zinc, magnesium
5. Silver