ChemistryHard60×since 2002Q597Which of the following are the example of double salt? A. FeSO4⋅(NH4)2SO4⋅6H2O\mathrm{FeSO}_{4} \cdot\left(\mathrm{NH}_{4}\right)_{2} \mathrm{SO}_{4} \cdot 6 \mathrm{H}_{2} \mathrm{O}FeSO4⋅(NH4)2SO4⋅6H2O B. CuSO4⋅4NH3⋅H2O\mathrm{CuSO}_{4}\cdot 4 \mathrm{NH}_{3} \cdot \mathrm{H}_{2} \mathrm{O}CuSO4⋅4NH3⋅H2O C. K2SO4⋅Al2(SO4)3⋅24H2O\mathrm{K}_{2} \mathrm{SO}_{4} \cdot \mathrm{Al}_{2}\left(\mathrm{SO}_{4}\right)_{3} \cdot 24 \mathrm{H}_{2} \mathrm{O}K2SO4⋅Al2(SO4)3⋅24H2O D. Fe(CN)2⋅4KCN\mathrm{Fe}(\mathrm{CN})_{2}\cdot4 \mathrm{KCN}Fe(CN)2⋅4KCN Choose the correct answer :AA, B and D onlyBB and D onlyCA and B onlyDA and C onlyCheck answerSkip