Define mole fraction.
Mole fraction is the ratio of the number of moles of one component to the total number of moles in a mixture.
How would you account for the following ? Many of the transition elements are known to form interstitial compounds.
When Cu²⁺ ion is treated with KI, a white precipitate is formed. Explain the reaction with the help of chemical equation.
Explain the following :
(i) The enthalpies of atomization of transition metals are quite high.
(ii) The transition metals and many of their compounds act as good catalysts.