When iron nail is dipped in copper sulphate solution,why its colour changes to brown? a) due to deposition of copper sulphate b)due to formation of iron sulphate c) due to hydrogen gas d)all of the above
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When iron nail is dipped in copper sulphate solution,why its colour changes to brown?
a) due to deposition of copper sulphate
✓b)due to formation of iron sulphate
c) due to hydrogen gas
d)all of the above
Option B is correct till much extent among the given options
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