What are the transition elements ? Write two characteristics of the transition elements.
How would you account for the following ? Many of the transition elements are known to form interstitial compounds.
Explain the following observation :
Most of the transition metal ions exhibit characteristic colour in aqueous solution.
What is meant by ‘disproportionation’ ? Give an example of a disproportionation reaction in aqueous solution.
Write the formula of an oxo-anion of Chromium (Cr) in which it shows the oxidation state equal to its group number.
Write the formula of an oxo-anion of Manganese (Mn) in which it shows the oxidation state equal to its group number.
When Cu²⁺ ion is treated with KI, a white precipitate is formed. Explain the reaction with the help of chemical equation.
Explain the following observation :
Most of the transition metal ions exhibit characteristic colour in aqueous solution.
Define the following terms :
(i) Isotonic solutions
(ii) Van’t Hoff factor
Write the formula of an oxo-anion of Manganese (Mn) in which it shows the oxidation state equal to its group number.
Write the formula of an oxo-anion of Chromium (Cr) in which it shows the oxidation state equal to its group number.