Question

Two solutions are mixed, bringing together ions of Na+, PO43−, V3+, and Cl−. Use the solubility rules to identify the composition of the salt that precipitates out of the solution. A. VPO4 B. Na3PO4 C. VCl3 D. NaCl

Answer 1

Answer: The correct answer is Option A.

Explanation:

We are given some ions, which are:  $Na^+,PO_4^{3-},V^{3+}\text{ and }Cl^-$

The compounds which may be formed from these ions will be $Na_3PO_4,NaCl,VPO_4\text{ and }VCl_3$

Precipitates are defined as the substances which are not soluble in water at any temperatures. They remain undissolved in water.

Out of the formed salts, the soluble ones are $Na_3PO_4,NaCl\text{ and }VCl_3$

$VPO_4$ remains insoluble in water and thus, the correct answer is Option A.

Answer 2

Correct answer is: A