Which of the Following Pairs of Aqueous Solutions Will Form

question 167

Multiple Choice

Which of the following pairs of aqueous solutions will form a precipitate when mixed?

• A) K₂CO₃ + Na Br
• B) Na₂ SO₄ + LiOH
• C) CaS + Na₂SO₄
• D) None of these solution pairs will produce a precipitate.
• E) All of these solution pairs will produce a precipitate.

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Definitions:

Unequal Tolerances

Tolerances that are not symmetrical, indicating different allowance limits for deviation above and below the nominal dimension.

Upper

In technical and engineering drawings, refers to the part or section above a specified reference point or line.

Lower

To decrease in position, value, or condition.

Individual Tolerances

The allowable variations in dimensions and geometry for individual component parts, specifying the permissible limits of error.