Practical Chemistry

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Across
  1. 2. the colour of the residue on heating lead nitrate
  2. 3. gas that turns moist lead acetate paper silvery black
  3. 4. gas that changes anhydrous copper sulphate from white to blue
  4. 7. gas that turns lime water milky
  5. 10. a sublimable compound
  6. 14. gas that gives curdy white ppt with silver nitrate
  7. 15. gas that rekindles a glowing splinter
Down
  1. 1. Suffocating gas that turns potassium dichromate orange to clear green
  2. 5. gas that changes moist starch iodide paper to blue black
  3. 6. colour of the flame imparted when calcium is present as the metallic ion
  4. 8. basic gas that gives dense white fumes with hydrogen chloride
  5. 9. copper carbonate changes to _______ colour on heating
  6. 11. gas that extinguishes a burning splinter with pop sound
  7. 12. the cation present when you see lilac color for the flame test
  8. 13. reddish brown acidic gas