If $B-Cl$ bond has a dipole moment, explain why $BCl_3$ molecule has zero dipole moment.
As a result of the difference in the electronegativities of $B$ and $C l$, the $B-Cl$ bond is polar in nature. However, the $BCl_3$ molecule is non-polar. This is because $BCl_3$ is trigonal planar in shape. It is a symmetrical molecule. Hence, the respective dipole-moments of the $B-Cl$ bond cancel each other, thereby causing a zero-dipole moment.
Aluminium chloride exists as dimer, $Al_2Cl_6$ in solid state as well as in soluiton of non-polar solvents such as $C_6H_6.$ When dissolved in water it gives :
Which of the following is responsible for cleansing action of Borax
$STATEMENT$-$1$: In water, orthoboric acid behaves as a weak monobasic acid. because
$STATEMENT$-$2$: In water, orthoboric acid acts as a proton donor.
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.
In the commercial electrochemical process for aluminium extraction, the electrolyte used is