The liquefied metal which expands on solidification is
$Ga$
$Al$
$Zn$
$In$
The incorrect order of $1^{st}$ $IP$ of the elements is
$AlC{l_3}$ is
Write reactions to justify amphoteric nature of aluminium.
The green colour produced in the borax bead test of a chromium$(III)$ salt is due to formation of______:
Explain physical and chemical properties of borax.