How many peaks are in P-Chlorotoluene? NMR.?

You should have three different peaks. A peak around 2ppm for the CH3, a peak for the two hydrogens on the ring closest to the CH3 will be represented as a doublet, and a peak for the two hydrogens on the ring closest to the Cl will be represented as a doublet. They are represented as doublets due to the n+1 rule ( a neighbouring hydrogen plus 1).