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: \[ \boxed{\text{3-Methylhexane}} \]
The colour of the solution observed after about 1 hour of placing iron nails in copper sulphate solution is:
Find the Derivative \( \frac{dy}{dx} \)
Given:\[ y = \cos(x^2) + \cos(2x) + \cos^2(x^2) + \cos(x^x) \]