MCQ
Steps $I$ and $II$ are
- A$I$ can't be $S_N1$
- B$II$ can't be $S_N1$
- ✓$I$ $S_N1$ $\&$ $II$ $S_N2$
- D$I$ $S_N2$ $\&$ $II$ $S_N1$
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$2 Fe _{( s )}+ O _{2( g )}+4 H _{( aq )}^{+} \rightarrow 2 Fe _{( aq )}^{2^{+}}+2 H _2 O ( l ) \quad E ^{\circ}=1.67 V$, At $\left[ Fe ^{2+}\right]=10^{-3} M , P \left( O _2\right)=0.1$ atm and $pH =3$, the cell potential at $25^{\circ} C$ is
Assertion $A$: Permanganate titrations are not performed in presence of hydrochloric acid.
Reason $R$ : Chlorine is formed as a consequence of oxidation of hydrochloric acid.
In the light of the above statements, choose the correct answer from the options given below.