Question

At $283K$ a saturated solution of solid $X$ can be prepared by dissolving $21.0g$ of it in $100g$ of water. The maximum amount of $X$ which can be dissolved in $100g$ of water at $313K$ is $62.0g$. An attempt is made to dissolve $50.0g$ of $X$ in $100g$ of water at $313K$.

A. All the $50.0g$ of $X$ will dissolve at $313K$
B. At $313K$ $29.0g$ of $X$ will remain undissolved
C. Solubility of $X$ decreases with increases of temperature
D. On cooling the solution of $X$ from $313K$ to $283K$ more than $21.0g$ of $X$ will crystallize out.

Which of the above statements are correct?

• A. A and B
• B. A and D
• C. B and C
• D. A, C and D

Answer 1

The correct option is B A and D