NEET levelSingle correct optionDifficulty 1 of 3nm111
How many carbon atoms are present in bicyclo[2.2.1]heptane?
A6
B5
C7
D8
Answer: C
In a von Baeyer name the numbers in the brackets count the atoms in each bridge, excluding the two bridgeheads. Total atoms = 2 + 2 + 1 + 2 = 7, so the ring skeleton has 7 carbons.