Coordination Compounds Question 12
Question 12 - 2024 (30 Jan Shift 1)
Choose the correct Statements from the following:
(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:
(1) (B), (C), (E) only
(2) (C), (D), (E) only
(3) (A), (B), (C) only
(4) (A), (D), (E) only
Show Answer
Answer (3)
Solution
Bidentate, chelating
Based on Hall-Heroults process
$\left[\mathrm{Rh}\left(\mathrm{PPh}{3}\right){3} \mathrm{Cl}\right]$ Wilkinson’s catalyst
$\mathrm{Ag}{2} \mathrm{~S}+\mathrm{NaCN} \stackrel{\text { Air }}{\rightleftharpoons} \mathrm{Na}\left[\operatorname{Ag}(\mathrm{CN}){2}\right]+\mathrm{Na}_{2} \mathrm{~S}$
$\mathrm{Ca}^{++}$ ion forms more stable complex with EDTA
