Which one of the following molecules contain both ionic and covalent bonds?

Which one of the following molecules contain both ionic and covalent bonds?
  1. $\mathrm{CH}_2 \mathrm{Cl}_2$
  2. $\mathrm{K}_2 \mathrm{SO}_4$
  3. $\mathrm{BeCl}_2$
  4. $\mathrm{SO}_2$

Solution

\(k\) and so 4 has ionic bond and $\mathrm{SO}_4(2-)$ has covalent bonds hence both types of bonds are present.

Asked in: JEE-TOPICTESTS-CHEMISTRY

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