Question

How many secondary carbon atoms does methyl cyclopropane have?

• A. None
• B. One
• C. Two
• D. Three

Answer 1

The correct option is C Two

Methyl cyclopropane has two secondary carbon atoms, one primary carbon atom and one tertiary carbon atom.
A primary carbon atom is attached to only one other carbon atom.
A secondary carbon atom is attached to two other carbon atoms.
A tertiary carbon atom is attached to three other carbon atoms
A quaternary carbon atom is attached to four other carbon atoms.