Chemistry
Dilute sulphuric acid will produce a white ppt. when added to a solution of:
- Copper nitrate
- Zinc nitrate
- Lead nitrate
- Sodium nitrate
Sulphuric Acid
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Answer
Lead nitrate
Reason —
Pb(NO3)2 + H2SO4 (dil) ⟶ 2HNO3 + PbSO4 ↓ [white ppt. formed]
White ppt. of PbSO4 is visible.
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The gas evolved when dil. sulphuric acid reacts with iron sulphide.
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- Vapour of sulphuric acid.
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H2S + 2H2SO4 ⟶ S + 2H2O + SO2
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