What are amphoteric oxides? Give two examples of amphoteric oxides.
What are amphoteric oxides? Give two examples of amphoteric oxides.
Those oxides that behave as both acidic and basic oxides are called amphoteric oxides.
Examples : aluminium oxide $(Al_2O_3)$, zinc oxide $(ZnO)$
Similar Questions
Pratyush took sulphur powder on a spatula and heated it. He collected the gas evolved by inverting a test tube over it, as shown in figure below.
$(a)$ What will be the action of gas on
$(i)$ dry litmus paper ?
$(ii)$ moist litmus paper ?
$(b)$ Write a balanced chemical equation for the reaction taking place.
Pratyush took sulphur powder on a spatula and heated it. He collected the gas evolved by inverting a test tube over it, as shown in figure below.
$(a)$ What will be the action of gas on
$(i)$ dry litmus paper ?
$(ii)$ moist litmus paper ?
$(b)$ Write a balanced chemical equation for the reaction taking place.
Give an example of a metal which
$(i)$ is a liquid at room temperature.
$(ii)$ can be easily cut with a knife.
$(iii)$ is the best conductor of heat.
$(iv)$ is a poor conduct of heat.
Give an example of a metal which
$(i)$ is a liquid at room temperature.
$(ii)$ can be easily cut with a knife.
$(iii)$ is the best conductor of heat.
$(iv)$ is a poor conduct of heat.
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be
Which metals do not corrode easily ?
Which metals do not corrode easily ?
Give reasons : Carbonate and sulphide ores are usually converted into oxides during the process of extraction.
Give reasons : Carbonate and sulphide ores are usually converted into oxides during the process of extraction.