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The required chemical equations. a. $I_2+Cl^-\rightarrow NR$ b. $Cl_2+2Br^-\rightarrow Br_2+2Cl^-$ c. $Br_2+2I^-\rightarrow I_2+2Br^-$ d. $Br_2+Cl^-\rightarrow NR$
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