K2PtCl2⋅2NH3 is complex compound 
KAl(SO4)2⋅12H2O is empirical formula of potash alum which is a double salt K2SO4⋅Al2(SO4)3⋅24H2O
Which of the following forms a set of a complex and a double salt, respectively?
Held on 30 Apr 2023 · Verified 9 Jul 2026.
K2PtCl2⋅2NH3 and KAl(SO4)2⋅12H2O
NiCl2⋅6H2O and NiCl2(H2O)4
CuSO4⋅5H2O and CuCl2⋅4NH3
PtCl2⋅2NH3 and PtCl4⋅2HCl
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