Give reasons why copper is used to make hot water tanks and not steel (an alloy of iron).
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Differentiate between metal and non-metal on the basis of their chemical properties.
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What type of oxides are formed when non-metals combine with oxygen?
State two ways to prevent the rusting of iron.
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 ...
In the electrolytic refining of a metal M, what would you take as the anode, the cathode and the electrolyte?
Name two metals which will displace hydrogen from dilute acids, and two metals which will not.