1. Name the following.
a. a metal used in structural engineering
b. a brittle metal that is used to galvanise iron
c.a metal used as fuse wire
d. a metal whose chloride and sulphate salts are both insoluble
d.a metallic chloride that is soluble in hot water but insoluble in cold water
2. Arrange the following metals in the decreasing order of chemical reactivity, placing the most reactive element
first. copper, magnesium, iron, sodium, calcium, zinc
3. Name two metals that occur in free state in nature. What is the method of refining them?
4. Explain the chemical change that causes corrosion of iron.
5. If an iron nail is left in a filled bottle of boiled water, how long will it take to corrode?
Answers
Answered by
0
Answer:
b zinc
Explanation:
zinc is tge answer for b part
Answered by
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Answer:
i. iron
ii. alloy of lead and tin
iii. zinc
iv. Lead
v. Lead Sulfate and lead chloride
Explanation:
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