Which of the following metal oxides is amphoteric in nature?

The process of heating a carbonate ore strongly in a limited supply of air to convert it into a metal oxide is called:

Which non-metal possesses a metallic lustre, an exception to the general properties of non-metals?

Which of the following is the primary reason for making alloys?

The oxides of non-metals are generally:

The reaction of iron(III) oxide (Fe2O3) with aluminium is used to join railway tracks. This highly exothermic reaction is an example of a:

Which property of metals allows them to be drawn into thin wires?

What are the products when a metal like zinc reacts with dilute hydrochloric acid (HCl)?

Brass is an alloy composed of which two metals?

Food cans are coated with tin and not zinc because:

A metal 'M' does not react with cold water but reacts with steam to form its oxide and hydrogen gas. This metal could be:

Which of the following conditions are essential for the rusting of iron?

Which of the following is a non-metal that exists as a liquid at room temperature?

A student adds an iron nail to a blue-coloured copper sulphate solution. After some time, the student would observe that:

An element 'X' is a solid at room temperature, very soft, and can be easily cut with a knife. It reacts vigorously with water. 'X' is most likely:

In the electrolytic refining of copper, the impure copper is used as the:

Ionic compounds are formed by the: