Amphoteric Metals Reaction
Amphoteric oxide + Alkali →
None of these
The product(s) formed in the following reaction is/are
Zn+2KOH (hot conc.)→ ______
K2ZnO2 + H2O
K2ZnO2 + H2
Which gas is formed when an amphoteric metal reacts with a strong base?
Which of the following is amphoteric in nature?
All of the above
What happens when zinc react with hot and concentrated KOH?
Water is formed along with corresponding soluble salt
Hydrogen gas is liberated.
Corresponding insoluble salt is formed
Oxygen gas is liberated
The precipitate formed due to the reaction of ammonium hydroxide and copper sulphate is
cuprous hydroxide, red
cupric hydroxide, pale blue
ammonium sulphate, green
ammonium sulphate, yellow
What is the yellow coloured amphoteric oxide that reacts with caustic soda to give a colourless salt of sodium plumbate and water?
Choose the correct chemical equation showing the reaction of lead with potassium hydroxide
Zinc oxide reacts with 'y' to give sodium zincate and water. Then 'y' is: