Question

question
identify the compound containing polar covalent bonds.
select the correct answer below:
○ f₂
○ ccl₄
○ n₂
○ h₂

Explanation:

Step1: Recall polar - covalent bond concept

Polar covalent bonds occur between atoms with different electronegativities.

Step2: Analyze $\mathrm{F}_{2}$

In $\mathrm{F}_{2}$, both atoms are fluorine. Same - element bond, electronegativity difference is 0, non - polar bond.

Step3: Analyze $\mathrm{CCl}_{4}$

Carbon and chlorine have different electronegativities. $\mathrm{C}-\mathrm{Cl}$ bonds are polar covalent.

Step4: Analyze $\mathrm{N}_{2}$

In $\mathrm{N}_{2}$, both atoms are nitrogen. Same - element bond, electronegativity difference is 0, non - polar bond.

Step5: Analyze $\mathrm{H}_{2}$

In $\mathrm{H}_{2}$, both atoms are hydrogen. Same - element bond, electronegativity difference is 0, non - polar bond.

Answer:

B. $\mathrm{CCl}_{4}$