Which of the following pair of ions may exhibit same colour
$C{r^{ + 3 }}$ and $F{e^{ + 2 }}$
$T{i^{ + 3 }}$ and ${V^{ + 2 }}$
$F{e^{ + 3}}$ and $M{n^{ + 2 }}$
$C{u^ + }$ and $N{i^{ + 2 }}$
Amalgams are
The alloy of steel that is used in making automobile parts and utensils
Which of the following set of elements does not belong to transitional elements set
Stainless steel contains ........... $\%$ $Cr$
Which of the following transitional metal has lowest density