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- 1. Multiple Choice
When NaOH solution is added to Zinc Nitrate solution
Chalky White ppt formed
Gelatinous White ppt formed
Dirty Green ppt formed
Reddish-brown ppt formed
- 2. Multiple Choice
When NaOH solution is added to Zinc Nitrate solution
Chalky White ppt formed
Gelatinous White ppt formed
Dirty Green ppt formed
Reddish-brown ppt formed
- 3. Multiple Choice
Identify the Hydroxide soluble in NaOH solution
Calcium Hydroxide
Copper Hydroxide
Ferric Hydroxide
Zinc Hydroxide
- 4. Multiple Choice
Identify the compound formed when Copper Hydroxide reacts with Ammonium Hydroxide
Tetraamminecopper( II ) Hydroxide
Copper Nitrate
Copper Hydrogen Carbonate
Copper Nitride
- 5. Multiple Choice
The ppt formed when Calcium Nitrate reacts with Sodium Hydroxide Solution
Calcium Hydroxide
Calcium Sulphate
Calcium Chloride
Calcium Oxide
- 6. Multiple Choice
The Hydroxides which are soluble in NaOH solution
Ferrous & Copper
Ferric & Zinc
Zinc & Lead
Copper & Lead
- 7. Multiple Choice
The salt solution which cannot produce any ppt when treated with Ammonium Hydroxide Solution
Copper Nitrate
Lead Nitrate
Zinc Nitrate
Calcium Nitrate
- 8. Multiple Choice
The compound formed when Zinc Hydroxide reacts with excess Ammonium Hydroxide
Ammonium Carbonate
Zinc Oxide
TetraamineZinc(II) Hydroxide
Sodium Zincate
- 9. Multiple Choice
ppt formed when Sodium hydroxide is added to Lead nitrate solution
Reddish Brown ppt
Dirty Green ppt
Chalky white ppt
Gelatinous white ppt
- 10. Multiple Choice
ppt formed when Sodium hydroxide is added to Ferrous sulphate solution
Reddish Brown ppt
Dirty Green ppt
Chalky white ppt
Gelatinous white ppt
- 11. Multiple Choice
ppt formed when Sodium hydroxide is added to Copper Chloride solution
Reddish brown ppt
Pale Blue ppt
Chalky white ppt
Gelatinous white ppt
- 12. Multiple Choice
ppt formed when Ammonium hydroxide is added to Ferric Chloride solution
Chalky white pp
Pale Blue ppt
Dirty green ppt
Reddish brown ppt
- 13. Multiple Choice
Pick out the amphoteric oxide
CaO
ZnO
MgO
CuO
- 14. Multiple Choice
Name the gas formed when Aluminium react with NaOH
Oxygen
Water
Hydrogen
Ammonia
- 15. Multiple Choice
Name the salt formed when lead oxide react with KOH
Sodium zincate
Potassium Aluminate
Potassium oxide
Potassium plumbite
- 16. Multiple Choice
WHAT IS THE COLOUR OF THE PRECIPITATE FORMED WHEN NaOH is added dropwise to Ca(NO3)2 AND WHETHER IT WILL BE SOLUBLE/INSOLUBLE IN EXCESS ?
DIRTY GREEN, insoluble
REDDISH BROWN, insoluble
WHITE , insoluble
PALE BLUE, insoluble
WHITE, soluble
- 17. Multiple Choice
WHAT IS THE COLOUR OF THE PRECIPITATE FORMED WHEN NaOH is added dropwise to Pb(NO3)2 AND WHETHER IT WILL BE SOLUBLE/INSOLUBLE IN EXCESS ?
DIRTY GREEN, insoluble
REDDISH BROWN, insoluble
WHITE , insoluble
PALE BLUE, insoluble
WHITE, soluble
- 18. Multiple Choice
WHAT IS THE COLOUR OF THE PRECIPITATE FORMED WHEN NaOH is added dropwise to CuSO4 AND WHETHER IT WILL BE SOLUBLE/INSOLUBLE IN EXCESS ?
DIRTY GREEN, insoluble
REDDISH BROWN, insoluble
WHITE , insoluble
PALE BLUE, insoluble
PALE BLUE, soluble
- 19. Multiple Choice
WHAT IS THE COLOUR OF THE PRECIPITATE FORMED WHEN NH4OH is added dropwise to CuSO4 AND WHETHER IT WILL BE SOLUBLE/INSOLUBLE IN EXCESS ?
DIRTY GREEN, insoluble
REDDISH BROWN, insoluble
WHITE , insoluble
PALE BLUE, insoluble
PALE BLUE, soluble to give an inky blue solution
- 20. Multiple Choice
Which of the following is an amphoteric oxide?
ZnO
PbO
Al2O3
All of these
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