To an aqueous solution containing ions such as Al³⁺, Zn²⁺, Ca²⁺, Fe³⁺, Ni²⁺, Ba²⁺ and Cu²⁺ was added conc. HCl, followed by H₂S.
The total number of cations precipitated during this reaction is / are:
To an aqueous solution containing ions such as Al³⁺, Zn²⁺, Ca²⁺, Fe³⁺, Ni²⁺, Ba²⁺ and Cu²⁺ was added conc. HCl, followed by H₂S.
The total number of cations precipitated during this reaction is / are:
Option 1 -
4
Option 2 -
1
Option 3 -
3
Option 4 -
2
-
1 Answer
-
Correct Option - 1
Detailed Solution:(H? S + dil HCl) is 2nd group reagent so Cu²? get precipitated as CuS.
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