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प्रश्न
Name two metals which form amphoteric oxides.
उत्तर
Aluminium and zinc are two metals that form amphoteric oxides.
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संबंधित प्रश्न
Complete and balance the following equation:
Na2O + H2O →
What type of oxides are formed when non-metals react with oxygen? Explain with an example.
What happens when calcium reacts with water? Write the chemical equation of the reaction of calcium with eater.
Name one metal more reactive and another less reactive than hydrogen.
The least reactive metal among the following is:
(a) sodium
(b) silver
(c) copper
(d) lead
Which of the following pair of reactants can undergo a displacement reaction under appropriate conditions?
(a) MgSO4 + Fe
(b) ZnSO4 + Fe
(c) MgSO4 + Pb
(d) CuSO4 + Fe
An element X forms two oxides XO and XO2. The oxide XO has no action on litmus solution but oxide XO2 turns litmus solution red.
(a) What is the nature of oxide XO?
(b) What is the nature of oxide XO2?
(c) Would you call element X a metal or a non-metal? Give reason for your choice.
(d) Can you give an example of element like X?
Write the chemical equation of the above process.
Answer the following question:
An element X on reacting with oxygen forms an oxide X2O. This oxide dissolves in water and turns red litmus blue. State whether element X is metal or a non - metal. Explain with a proper example.
Write the chemical equation for the following reaction:
Calcium metal reacts with water.
