The ionic carbide is
$ZnC$
$TiC$
$SiC$
$Ca{C_2}$
Which is true about $H_3BO_3$
Give uses of $LiBH_4$ and $NaBH_4$.
Which of the following is an amphoteric oxide
Colour of the bead in borax bead test is mainly due to the formation of
Give reasons:
$(i)$ Conc. $HNO _{3}$ can be transported in aluminium container.
$(ii)$ $A$ mixture of dilute $NaOH$ and aluminium pieces is used to open drain.
$(iii)$ Graphite is used as lubricant.
$(iv)$ Diamond is used as an abrasive.
$(v)$ Aluminium alloys are used to make aircraft body.
$(vi)$ Aluminium utensils should not be kept in water overnight.
$(vii)$ Aluminium wire is used to make transmission cables.