4. Consider the compound below. Answer the following questions about its mass spectrum m -NH a. Indicate the structure of the molecular ion (1 points) b. Indicate the products of the heterolytic cleavage of the molecular ion. Clearly indicate which fragment would be detected in the MS experiment. (3 points) c. Indicate the products of the alpha (a) cleavage of the molecular ion. Clearly indicate which fragment would be detected in the MS experiment (3 points)