Number of unpaired electrons in $M{n^{2 + }}$ is
$3$
$5$
$4$
$1$
Manganese steel is used for making railway tracks because
If spin only magnetic moment of $VCl_X$ is $1.73\,BM$ then correct formula is
Cuprous ion is colourless, while cupric ion is coloured because
Essential constituent of an amalgam is
Explain giving reasons:
$(i)$ Transition metals and many of their compounds show paramagnetic behaviour.
$(ii)$ The enthalpies of atomisation of the transition metals are high.
$(iii)$ The transition metals generally form coloured compounds.
$(iv)$ Transition metals and their many compounds act as good catalyst.