MCQ
Identity the incorrect pair from the following:
- APhotography - $\mathrm{AgBr}$
- BPolythene preparation - $\mathrm{TiCl}_4, \mathrm{Al}\left(\mathrm{CH}_3\right)_3$
- CHaber process - Iron
- ✓Wacker process $-\mathrm{Pt} \mathrm{Cl}_2$
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