Chemistry: Multiple Choice Questions in Chemical bonding

Chemistry: Multiple Choice Questions in Chemical bonding
1. Which substance has a polar covalent bond between its atoms?
(A) K3N
(B) Ca3N2
(C) NaCl
(D) F2
(E) NH3

2. Which kinds of bonding can be found in a sample of H2O(l)?
(A) Hydrogen bonds only
(B) Nonpolar covalent bonds only
(C) Ionic and nonpolar hydrogen bonds
(D) Both polar covalent and hydrogen bonds
(E) Metallic and ionic bonds

3. When an ionic compound is dissolved in water, the ions in solution can best be described as
(A) hydrated molecules only
(B) dehydrated ions and molecules
(C) both hydrated molecules and hydrated ions
(D) neither hydrated ions nor hydrated molecules
(E) hydrated ions only

4. Which substance represents a molecule that can combine with a proton (H1+)?
(A) NH3
(B) Na1+
(C) HCl
(D) H3O1+
(E) H

5. Which compound contains no ionic character?
(A) NH4Cl
(B) CaO
(C) K2O
(D) Li2O
(E) CO

6. The forces of attraction that exist between nonpolar molecules are called
(A) Van der Waals / dispersion forces
(B) ionic bonds
(C) covalent bonds
(D) electrovalent bonds
(E) metallic bonds

7. Which substance is a network solid?
(A) Li2O
(B) SiO2
(C) H2O
(D) CO2
(E) NaCl

8. Which molecule is a polar molecule?
(A) N2
(B) H2O
(C) CH4
(D) CO2
(E) KCl

9. Which is the chemical formula for iron(III)sulfate?
(A) Fe2SO4
(B) Fe3SO4
(C) Fe(SO4)3
(D) Fe2(SO4)3
(E) Fe2S3

10. In which of the following compounds are hydrogen bonds between molecules the strongest?
(A) HF
(B) HCl
(C) HBr
(D) HI
(E) HAt

Answer

1. (E) 2. (D) 3. (E)4. (A) 5. (E) 6. (A)7. (B) 8. (B) 9. (D) 10. (A)