Which of the following cation can not give borax bead test ?
$Cr^{3+}$
$Co^{2+}$
$Ag^+$
$Mn^{2+}$
Soft heavy metal melts at ${30\,^o}C$ and is used in making heat sensitive thermometers the metal is
Write chemical reaction to prepare inorganic benzene $(B_3N_3H_6)$.
Dilute aqueous solution of ........ acid is used as antibiotic.
In the extraction of aluminium the electrolyte is
$AlC{l_3}$ is