What Is the Effect of Substituting Soluble Metal Salts Such

question 44

Multiple Choice

What is the effect of substituting soluble metal salts such as NaCl and K₂CO₃ for HCl or (NH₄) ₂CO₃ in the qualitative analysis scheme for separating the five Analytical Groups?

• A)You can no longer tell if your original sample contained Na⁺ or K⁺.
• B)There is no effect on the analysis since Na⁺ and K⁺ do not form a precipitate.
• C)The NaCl and K₂CO₃ are not pure,analytical grade materials.
• D)Potassium ion forms a precipitate with sulfide ion.
• E)Na⁺ and K⁺ react violently with acids such as H₂S,producing highly flammable and potentially explosive hydrogen gas.

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