Chemistry
Select the correct salt from list II which on thermal decomposition exhibits the change in colour from list I - 1 to 5
| List I | List II |
|---|---|
| 1. Light green to black | A: Copper carbonate |
| 2. White to yellow [heated state] | B: Hydrated copper sulphate |
| 3. Blue to black | C: Copper nitrate |
| 4. Orange to green | D: Ammonium dichromate |
| 5. Blue to white | E: Zinc nitrate |
Practical Chemistry
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Answer
| List I | List II |
|---|---|
| 1. Light green to black | A: Copper carbonate |
| 2. White to yellow [heated state] | E: Zinc nitrate |
| 3. Blue to black | C: Copper nitrate |
| 4. Orange to green | D: Ammonium dichromate |
| 5. Blue to white | B: Hydrated copper sulphate |
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Sl.
No.Column 1 Column 2 Column 3 1. Heat on copper nitrate Colour of acidic gas evolved …………… 2. Heat on iodine crystals Colours of vapours evolved …………… 3. Heat on ammonium dichromate Name of neutral gas evolved …………… 4. Heat on copper carbonate Test for gas evolved …………… 5. Heat on zinc nitrate Colour of residue …………… 6. Addition of dil. H2SO4 to FeS Odour of gas evolved …………… 7. Addition of dil. H2SO4 to KHCO3 Name of residue obtained …………… 8. Addition of H2SO4 to zinc Test for gas evolved …………… 9. Heat on sodium chloride Colour imparted to flame dring flame test. 10. Flame test for calcium chloride Acid used for flame test ……………