6. Haloalkanes and Haloarenes — Chemistry STD 12 Science — Question

$X, Y$ and $Z$ can be described as

$(A)$ Ethane-$1\ 2$-diamine is a chelating ligand.

$(B)$ Metallic aluminium is produced by elecrtrolysis of aluminium oxide in presence of cryolite.

$(C)$ Cyanide ion is used as ligand for leaching of silver.

$(D)$ Phosphine act as a ligand in Wilkinson catalyst.

$(E)$ The stability constants of $\mathrm{Ca}^{2+}$ and $\mathrm{Mg}^{2+}$ are similar with $EDTA$ complexes.

Choose the correct answer from the options given below:

Reason : Oxidation takes place at anode and reduction at cathode.