Which of the following pairs of elements might form an alloy
Zinc and lead
Iron and mercury
Iron and carbon
Mercury and platinum
Complex ion is shown by
The property, which is not characteristic of transition metals
Assertion : Cuprous ion $(Cu^+)$ has unpaired electrons while cupric ion $(Cu^{2+})$ does not.
Reason : Cuprous ion $(Cu^+)$ is colourless whereas cupric ion $(Cu^{2+})$ is blue in the aqueous solution.
In first transition series, the melting point of $Mn$ is low because