Module
Four: Part M: Multiple Choice 10 points
1. According to the general trends in the
periodic table, which of the following elements is the most electronegative?
(a) O |
(b) F |
(c) P |
(d) S |
(e) Cl |
2. Draw the electron dot formula for ethylene,
C2H4, and state the type of bonds in one molecule.
(a) 6 single bonds |
(b) 5 single bonds |
(c) 4 single bonds and 1
double bond |
(d) 4 single bonds and 2
double bonds |
(e) 4 single bonds and 1
triple bond |
3. Magnesium metal and oxygen gas react to form
the ionic compound magnesium oxide.
Which of the following statements is true?
(a) Valence
electrons are transferred from oxygen to magnesium atoms.
(b) The magnesium
atom and the magnesium ion have the same number of valence electrons.
(c) Magnesium and
magnesium oxide have similar properties.
(d) The smallest
representative particle is a molecule.
(e) none of the above
4. Which noble gas is isoelectronic
with a lithium ion?
(a) helium |
(b) neon |
(c) argon |
(d) krypton |
(e) xenon |
5. Which of the following ions has the electron
configuration 1s2 2s2 2p6
(a) F1- |
(b) O2- |
(c) N3- |
(d) all of the above |
(e) none of the above |
6. What type of chemical bond results from
transferring valence electrons from a metal to a nonmetal?
(a) covalent bond |
(b) ionic bond |
(c) metallic bond |
(d) coordinate covalent bond |
(e) none of the above |
7. The mercury (II) ion, Hg2+, is
classified as which of the following?
(a) monoatomic cation |
(b) monoatomic anion |
(c) polyatomic cation |
(d) polyatomic anion |
(e) none of the above |
8. Aqueous H2S is classified as
which of the following?
(a) binary ionic |
(b) ternary ionic |
(c) binary molecular |
(d) binary acid |
(e) ternary oxyacid |
9. What is the formula for the nitride ion?
(a) N3- |
(b) N2- |
(c) N1- |
(d) NO21- |
(e) NO31- |
10. What is the formula for the hydrogen
carbonate ion?
(a) C2H3O21- |
(b) C2H3O22- |
(c) HCO31- |
(d) HCO32- |
(e) none of the above |
Answers:
1.b 2. c 3. e 4.a 5. d 6.b
7. a
8.d 9.a 10.c