Q1. How many peaks are there in the 13C NMR spectrum of 1,4-dimethylbenzene?

A: 8

B: 4

C: 3

D: 2

there are four peaks in the 13c NMR (B)

odds are decent that your handwriting right now looks a little bit different than it did five years ago, and will look different again in five more. when i look back through my notebooks from middle school to now, i see a long, slow progression from meticulous and teeny letters to bigger, sloppier ones, plus a few side detours: sometime in high school, for example, i decided those loopy cursive lowercase f’s were just the coolest, adopting them as the lone rep for cursive in my otherwise all-print handwriting.

explanation: