Step 1: Identify longest chain:
6 carbon atoms → hexane
Step 2: Locate substituent:
Methyl group at C-3
Step 3: Apply IUPAC rules: \[ \text{Name: } 3-Methylhexane \] Final Answer: \[ \boxed{\text{3-Methylhexane}} \]
Four students of class XII are given a problem to solve independently. Their respective chances of solving the problem are: \[ \frac{1}{2},\quad \frac{1}{3},\quad \frac{2}{3},\quad \frac{1}{5} \] Find the probability that at most one of them will solve the problem.