Transition metals are related to which block?

Match the statements given in List-$I$ with the oxidation states given in List-$II$:

List-$I$	List-$II$
$A$. Oxidation state of $Mn$ in $MnO_2$	$i$. $+2$
$B$. Most stable oxidation state of $Mn$	$ii$. $+3$
$C$. Maximum stable oxidation state of $Mn$ in oxides	$iii$. $+4$
$D$. Characteristic oxidation state of Lanthanoids	$iv$. $+5$
	$v$. $+7$

Which of the following is a coloured compound?

The magnetic moments for $Ti^{2+}$,$V^{3+}$,and $Ni^{2+}$ are respectively:

Which among the following is colored?

In the modern periodic table,which elements represent the transition between the most electropositive and the least electropositive elements?