ChemistryMedium158×since 2002Q781When Cu2+\mathrm{Cu}^{2+}Cu2+ ion is treated with KI\mathrm{KI}KI, a white precipitate, X\mathrm{X}X appears in solution. The solution is titrated with sodium thiosulphate, the compound Y\mathrm{Y}Y is formed. X\mathrm{X}X and Y\mathrm{Y}Y respectively are :A.tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-0lax{text-align:left;vertical-align:top} X=CuI2\mathrm{X=CuI_2}X=CuI2 Y=Na2S4O6\mathrm{Y=Na_2S_4O_6}Y=Na2S4O6B.tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-0lax{text-align:left;vertical-align:top} X=Cu2I2\mathrm{X=Cu_2I_2}X=Cu2I2 Y=Na2S4O6\mathrm{Y=Na_2S_4O_6}Y=Na2S4O6C.tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-0lax{text-align:left;vertical-align:top} X=CuI2\mathrm{X=CuI_2}X=CuI2 Y=Na2S2O3\mathrm{Y=Na_2S_2O_3}Y=Na2S2O3D.tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-0lax{text-align:left;vertical-align:top} X=Cu2I2\mathrm{X=Cu_2I_2}X=Cu2I2 Y=Na2S4O5\mathrm{Y=Na_2S_4O_5}Y=Na2S4O5Check answerSkip