MCQ
A group of atoms can function as a ligand only when
- AIt is a small molecule
- ✓It has an unshared electron pair
- CIt is a negatively charged ion
- DIt is a positively charged ion
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Reason : In the presence of a more volatile liquid solute, only the solute will form the vapours and solvent will not.
$(I)$ ${O_3} \to $ product
$(II)$ $C{r_2}O_7^{2 - }\xrightarrow{{{H^ + }}}$ product
$(III)$ $MnO_4^\Theta \xrightarrow{{{H^ + }}}$ product
$(IV)$ $H_2S \longrightarrow $ product