MCQ
In the given reaction $[X]$ will be


- A$C_6H_5NH_2$
- B$C_6H_5NHOH$
- ✓$p-$ amino phenol
- DHydrazobenzene


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$Mg\left( s \right) + \mathop {2A{g^ + }}\limits_{(0.0001\,M)} \to \mathop {M{g^{ + 2}}}\limits_{\left( {0.100\,M} \right)} + 2Ag\left( s \right)$
If $E_{cell}^o = 3.17\,V$

Pair $-\,A:$ $(1) \,2 - $ Chloropropane $(2) \,2-$ Bromopropane
Pair $-\,B:$ $(3) \,1 -$ Bromobutane $(4)\, 2-$ Bromobutane
$(i)$ $0.10\, \mathrm{M} \,\mathrm{Ba}_{3}\left(\mathrm{PO}_{4}\right)_{2}$ $(ii)$ $0.10\, \mathrm{M}\, \mathrm{Na}_{2} \mathrm{SO}_{4}$ $(iii)$ $0.10\, \mathrm{M}\, \mathrm{KCl}$ $(iv)$ $0.10 \,\mathrm{M} \,\mathrm{Li}_{3} \mathrm{PO}_{4}$