Write the structure of an isomer of compound C₄H₉Br which is most reactive towards reaction.
Explain the following observation :
Most of the transition metal ions exhibit characteristic colour in aqueous solution.
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.
When Cu²⁺ ion is treated with KI, a white precipitate is formed. Explain the reaction with the help of chemical equation.