To produce black colour iron filings are dissolved in
A) Vinegar
B) Sulphuric acid
C) Copper sulphate
D) Sodium sulphate
Answers
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1
answer
B sulphuric acid
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5
Answer:
B) Sulphuric acid
Explanation:
The chemical equation for the reaction between iron and dilute sulphuric acid can be written as:
Fe + H2SO4 (dil)→FeSO4 + H2
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