MCQ
$x =$ moles of $KOH$ consumed is


- A$1$
- B$2$
- ✓$3$
- D$4$

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$[Cr(NH_3)_6] [Cr(NO_2)_6]$ and $[Cr(NH_3)_4(NO_2)_2] \,[Cr(NH_3)_2(NO_2)_4]$