MCQ
Above compounds can be differentiated by following reagent


- A$2-4\, DNP$ (Brady reagent)
- ✓Tollen's reagent
- CLucas reagent
- D$NaHSO_3$


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| Compound | Total stereoisomere |
| $(A)\, [Co(en)_2 \,Cl_2]^+$ | $(P)\, 2$ |
| $(B)\, [Co(en)_3]\, Cl_3$ | $(Q)\, 3$ |
| $(C) \,[Pt(NH_3)_2 \,Cl_2]$ | $(R)\, 4$ |
| $(D)\, [Pt(NH_3)_3 \,Cl_3]^+$ | $(S)\, 5$ |
Correct code
$Fe ^{2+} \rightarrow Fe ^{3+} + e ^{-} \quad E _{ Fe ^{3+} / Fe ^{2+}}=0.77 \,V$
$2 I ^{-} \rightarrow I _{2}+2 e ^{-} \quad E _{ I _{2} / I ^{-}}^{0}=0.54 \,V$
The standard electrode potential for the spontaneous reaction in the cell is $x \times 10^{-2} \,V 298$ $K$. The value of $x$ is .... (Nearest Integer)