Rank the following groups in order of decreasing priority according to the Cahn-Ingold-Prelog system. $$\begin{array} { c c c c }
- \mathrm { CH } _ { 3 } & - \mathrm { CH } _ { 2 } \mathrm { OH } & - \mathrm { COOH } & - \mathrm { CHO } \
\text { I } & \text { II } & \text { III } & \text { IV }
\end{array}$$

Question

Rank the following groups in order of decreasing priority according to the Cahn-Ingold-Prelog system. $$\begin{array} { c c c c } 
- \mathrm { CH } _ { 3 } & - \mathrm { CH } _ { 2 } \mathrm { OH } & - \mathrm { COOH } & - \mathrm { CHO } \
\text { I } & \text { II } & \text { III } & \text { IV }
\end{array}$$

Quizplus · Accepted Answer

The Cahn-Ingold-Prelog priority rules rank groups based on atomic number and connectivity. The -COOH group has the highest priority due to the presence of two oxygens. The -CHO group is next, followed by -CH2OH, and finally -CH3 with the lowest priority.

Rank the Following Groups in Order of Decreasing Priority According