JEE Main 20238 Apr, Morning shiftChemistryMediumd- and f-Block Elements158× since 2002Which halogen is known to cause the reaction given below : 2Cu2++4X−→Cu2X2(s)+X22 \mathrm{Cu}^{2+}+4 \mathrm{X}^{-} \rightarrow \mathrm{Cu}_{2} \mathrm{X}_{2}(\mathrm{s})+\mathrm{X}_{2}2Cu2++4X−→Cu2X2(s)+X2AOption A. All halogensBOption B. Only IodineCOption C. Only BromineDOption D. Only ChlorineCheckSkip · show solution