Properties of Transition Elements

Transition metals possess low electrical conductivity.

The most malleable metals $(\mathrm{Cu}, \mathrm{Ag}, \mathrm{Au})$ have close-packing of the type

Iodine is formed as the by product in the reaction of cupric ion and iodide ion.

Write the equation for the reaction of cupric ion with iodide ion.

How does acidified ${\mathrm{KMnO}}_4$ solution react with Oxalic acid?

In which compound, oxidation number of $\mathrm{Fe}$ is zero?

The highest oxidation state ($+7$) is shown by the element

Explain: Transition elements form complex compounds.

Account for the given statement: $\mathrm{Mn}$ shows maximum oxidation state in $3\mathrm{d}$ series of transition elements.

Explain why transition metals generally form coloured compounds.

All compounds of $\mathrm{Sc}$ are colourless. Explain.

Arrange $\mathrm{MnO},{\mathrm{Mn}}_2{\mathrm{O}}_3,{\mathrm{MnO}}_2$ in decreasing order of acidity.

Explain why ${\mathrm{Ti}}^{4+}$ ion is colourless.