For the electrolytic production of aluminium, $(i)$ the cathode and $(ii)$ the anode are made of
$(i)$ Platinum and $(ii)$ Iron
$(i)$ Copper and $(ii)$ Iron
$(i)$ Copper and $(ii)$ Carbon
$(i)$ Carbon and $(ii)$ Carbon
If $B-Cl$ bond has a dipole moment, explain why $BCl_3$, molecule has zero dipole moment.
Give increasing order of group $13$ elements for atomic radius.
$BCl_3$ does not exist as dimer but $BH_3$ exist as dimer $(B_2H_6)$ becuase
$AlF_3$ is soluble in $HF$ only in presence of $KF.$ It is due to the formation of
Give chemical reaction of aluminum with dilute $HCl$ ?