Chapter 17, Problem 9RAT

To determine

The correct option for the statement “Why in some cases common name is preferred instead of systematic names?”

Answer to Problem 9RAT

The correct option for the statement “Why in some cases common name is preferred instead of systematic names?” is option (d).

Explanation of Solution

The compounds are formed when two or more different elements are combined.

The compounds are named in two types:

• The systematic name (IUPAC name).
• The common name.

For example,

• ${\text{H}}_2\text{O}$- dihydrogen monoxide is commonly called water.
• ${\text{NH}}_3$- trihydrogen nitride is commonly called ammonia.
• ${\text{CH}}_4$- tetra hydrogen carbide is commonly called methane.

The systematic names of the system are very detailed and difficult to use frequently whereas the common names are very simple, relevant, and easy to use frequently.

Conclusion:

Therefore, the correct option is option (d).