Question

which of the following is the correct representation of partial charges at the indicated atoms? a. i = δ+ ii = δ+ iii = δ+ b. i = δ− ii = δ− iii = δ− c. i = δ+ ii = δ+ iii = δ− d. i = δ− ii = δ− iii = δ+

Explanation:

Step1: Understand electronegativity concept

Electronegative atoms attract electrons more, getting $\delta^-$ and making adjacent atoms $\delta^+$.

Step2: Analyze Cl atom (I)

Chlorine (Cl) is highly electronegative. It will pull electrons towards itself, so it has a partial - negative charge ($\delta^-$).

Step3: Analyze O atom (II)

Oxygen (O) is also highly electronegative. It will attract electrons, resulting in a partial - negative charge ($\delta^-$).

Step4: Analyze C atom (III)

The carbon (C) atom adjacent to the electronegative oxygen will have a partial - positive charge ($\delta^+$) due to the electron - withdrawing effect of oxygen.

Answer:

D. I = $\delta^-$; II = $\delta^-$; III = $\delta^+$