solution
suspension
precipitate
colloid
Explanation
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REF: New School Chemistry
2016 Edition
Pg. 461 Calcium Tetraoxosulphate (VI) - Metals and their Compounds (I)
Calcium tetraoxosulphate (VI), formed by adding soluble calcium salt (CaCl2) to a sodium tetraoxosulphate (VI) solution, is only slightly soluble and comes out of solution as a white precipitate.
Answer and Explanation: Calcium sulfate CaSO4, along with only a few other sulfate-containing compounds, are only slightly soluble in water H2 O. Additionally, CaSO4 doesn't often form as a precipitate either.
The correct answer is: A) solution
Explanation:
Calcium tetraoxosulphate(VI) is the chemical name for calcium sulphate (CaSO₄).
It is sparingly soluble in water, which means it dissolves only a little, but still enough to form a solution, not a suspension, precipitate, or colloid.
A solution is formed even if the solubility is low, as long as the solute dissolves uniformly at the molecular or ionic level.
Summary:
Solution – Yes, if even a small amount dissolves.
Suspension – No, particles would be visible and not dissolved.
Precipitate – No, unless excess solute is added beyond solubility.
Colloid – No, colloids involve intermediate-sized particles, not true ions or molecules.
So again, the correct choice is: A) solution.
Don't get your self confused ...... sparingly means slightly soluble ....which means a false solution i.e some we form PPT at the top also some we settle at the bottom ....the both are called COLLOIDS ...note COLLOIDS is a false solution not true SOLUTION
The answer should be B.
Calcium tetraoxosulphate (VI) is sparingly soluble in water, meaning that some of it dissolves, but the rest stays undissolved and floats around temporarily. That undissolved part doesn’t instantly settle — it stays suspended for a bit, making the whole thing a suspension. The solute particles in it are called precipitates, but the entire soultion is calle a SUSPENSION.
Precipitate = the solid that settles.
Suspension = the overall mixture of liquid + undissolved particles.
So even though a precipitate forms, the mixture is still a suspension.
