Question

question 2 (1 point)
how many carbon atoms are in 3 - methyl - 4,4 - diethyl - 5 - propyldecane?
a) 20
b) 17
c) 16
d) 19
e) 18

Explanation:

Step1: Analyze the parent chain

Decane has 10 carbon atoms ($\text{C}_{10}\text{H}_{22}$).

Step2: Analyze the substituents

• Methyl ($-\text{CH}_3$) has 1 carbon atom.
• Diethyl (2 ethyl groups, $-\text{CH}_2\text{CH}_3$ each) has $2\times2 = 4$ carbon atoms.
• Propyl ($-\text{CH}_2\text{CH}_2\text{CH}_3$) has 3 carbon atoms.

Step3: Calculate total carbon atoms

Sum the carbon atoms from the parent chain and substituents: $10+1 + 4+3=18$.

Answer:

e) 18