MCQ
Cis-trans isomerism is exhibited by
- A$[PtCl(NH_3)_3]^+$
- B$[Pt(NH_3)_4]^{2+}$
- C$[PtCl_4]^{2-}$
- ✓$[PtCl_2(NH_3)_2]$
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$C{H_3}COOH + PC{l_5} \to A\mathop {\xrightarrow{{{C_6}{H_6}}}}\limits_{anh.\,AlC{l_3}} $ $B\mathop {\xrightarrow{{{C_2}{H_5}MgBr}}}\limits_{ether} C$

| List-$I$ | List-$II$ | ||
| $A$ | $[Fe(H_2O)_6]^{2+}$ | $P$ | $0$ |
| $B$ | $[Fe(H_2O)_6]^{3+}$ | $Q$ | $1$ |
| $C$ | $[Fe(CN)_6]^{4-}$ | $R$ | $2$ |
| $D$ | $[Fe(CN)_6]^{3-}$ | $S$ | $4$ |
| $E$ | $[Ni(H_2O)_4]^{2+}$ | $T$ | $5$ |
$A$ $||$ $B$ $||$ $C$ $||$ $D$ $||$ $E$
$CH_3CHO$ $\xrightarrow[{\left( {ii} \right)\,{H_2}O}]{{(i)\,C{H_3}MgBr}}A\xrightarrow[\Delta ]{{{H_2}S{O_4}}}B\xrightarrow[{Oxidation}]{{Hydroboaration}}C$