Question

21) Consider the following structures I-IV. Circle the two species that represent resor sonance structures H. O: :0: H .H N. N: 22) Circle the base and the conjugate base in the following reaction но CH,COO CH COOH HO IV ш II Chapter 3 particular molecule? 23) Why do z bonds confer reactivity on a A) Because n bonds are diffficult to break in chemical reactions. B) Because z bonds make a molecule an acid. C) Because z bonds are easily broken in chemical reactions. D) Because bonds make a molecule an electrophile. 24) Which of the following correctly matches the molecules to the names of the functional group? Amide CH3NH2 CH,SCH Ш. Сн,СONH IV. CH CO CH Ester I. Sulfide П. Amine A) I and II B) II and IV C) III and IV D) II and III 25) Which of the following structures contains an amide? NH2 NH NH2 IV

Answer 1

2 1) N-H t 22 H2 (bae) Caud) Ate 23) C 24 В) amnd Iv 25)