Chemistry
Dilute H2SO4 and conc. H2SO4 can be distinguished by :
- Copper
- Silver
- Gold
- Platinum
Sulphuric Acid
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Answer
Copper
Reason — Dilute H2SO4 and conc. H2SO4 can be distinguished by Copper. Copper does not react with dilute H2SO4, because dilute H2SO4 cannot act as an oxidising agent. Whereas, conc. sulphuric acid on heating with copper evolves sulphur dioxide.
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