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c. HF<br />
d. P4<br />
e. IF<br />
____ 202. Which one of the following compounds contains both ionic and covalent bonding?<br />
a. LiF<br />
b. KNO3<br />
c. MgO<br />
d. CaCl2<br />
e. Rb3N<br />
____ 203. Which of the following compounds does not contain both ionic and covalent bonding?<br />
a. NaNO3<br />
b. BaSO4<br />
c. CBr4<br />
d. NaClO3<br />
e. NH4Br<br />
____ 204. What is the electronic geometry for 5 regions of high electron density on a central atom?<br />
a. octahedral<br />
b. square planar<br />
c. tetrahedral<br />
d. trigonal bipyramidal<br />
e. trigonal planar<br />
____ 205. What is the electronic geometry for 6 regions of high electron density on a central atom?<br />
a. octahedral<br />
b. square planar<br />
c. trigonal bipyramidal<br />
d. tetrahedral<br />
e. trigonal planar<br />
____ 206. Which one of the following molecules is polar?<br />
a. N2<br />
b. P4<br />
c. Cl2<br />
d. CO2<br />
e. H2O<br />
____ 207. Which one of the following statements about compounds or polyatomic ions of the A group elements is false?<br />
a. All compounds in which the central atom is sp 3 d 2 hybridized violate the octet rule.<br />
b. Sulfur hexafluoride is an example of a compound with a central atom that has<br />
sp 3 d 2 hybridization.<br />
c. All molecules in which the central element is sp 3 d 2 hybridized have octahedral electronic<br />
geometry.<br />
d. All molecules in which the central element is sp 3 d 2 hybridized have octahedral molecular<br />
geometry.<br />
e. All ions in which the central atom is sp 3 d 2 hybridized have octahedral electronic geometry.<br />
____ 208. The hybridization associated with the central atom of a molecule in which all the bond angles are 109.5 is<br />
__________.<br />
a. sp<br />
b. sp 2
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