Question

In a compound $XY$, if the electronegativity difference between $X$ and $Y$ is greater than 1.7, then the compound $XY$ is soluble in:

• A. benzene
• B. carbon tetrachloride
• C. water
• D. carbon disulfide

Answer 1

The correct option is C water

If the electronegativity difference between two elements is greater than 1.7, then the bond between the two elements is an ionic bond and the molecule is ionic.

Ionic molecules are soluble in polar compounds. $H_{2}O$ is a polar compound. So, $XY$ is soluble in $H_{2}O$.

Hence, option C is correct.