Chapter 3

1. Which of the following lists contains common heteroatoms found in organic molecules?

• A) N, O, S, P, Cl

• B) Na, O, S, P, Cl

• C) Na, Mg, S, N, Cl

• D) Na, Mg, O, N, Cl

2. Why do heteroatoms confer reactivity on a particular molecule?

• A) Because they have lone pairs and create electron-rich sites on carbon.

• B) Because they have lone pairs and create electron-deficient sites on carbon.

• C) Because they are electronegative and act as electrophiles.

• D) Because they are electropositive and act as nucleophiles.

3. Why do  bonds confer reactivity on a particular molecule?

• A) Because  bonds are difficult to break in chemical reactions.

• B) Because  bonds make a molecule an acid.

• C) Because  bonds are easily broken in chemical reactions.

• D) Because  bonds make a molecule an electrophile.

• A) I, II, III

• B) I, II, IV

• C) II, III, IV

• D) I, III, IV

• A) I, II, IV

• B) I, II, III

• C) II, III, IV

• D) I, III, IV

• A) I, II, III

• B) I and III

• C) II, III, IV

• D) II and IV

• A) I

• B) II

• C) III

• I and III

• A) I and II

• B) III and IV

• C) II and III

• D) II and IV

• A) I and II

• II and III

• C) III and IV

• D) I and III

• A) I and II

• B) II and IV

• C) III and IV

• D) II and III