Two atoms of hydrogen bond with an atom of oxygen to form a water molecule. This bonding is
a. covalent only.
b. polar only.
c. both covalent and polar.
d. none of these.
[Ques. 2] The largest plutons are called ______________.
a. dikes
b. sills
c. batholiths
d. laccoliths
[Ques. 3] If two atoms have equal electronegativity, a bond formed between them is generally
a. ionic.
b. nonpolar.
c. very weak.
d. polar.
[Ques. 4] Dikes are examples of ______________ plutons.
a. discordant
b. concordant
c. recordant
d. precordant
[Ques. 5] If two atoms have five electrons in the valence shell and are covalently bound, the molecule has a ______________ bond.
a. quadruple
b. double
c. triple
d. single
[Ques. 6] Laccoliths and sills are examples of ______________ plutons.
a. recordant
b. precordant
c. discordant
d. concordant
[Ques. 7] A pair of electrons shared by two atoms forms
a. a metallic bond.
b. a double covalent bond.
c. a single covalent bond.
d. an ionic bond.
[Ques. 8] Intrusive igneous rock formations that cut more or less vertically across older formations are said to be ______________.
a. recordant
b. discordant
c. concordant
d. precordant
[Ques. 9] When hydrogen, from Group 1A, unites with chlorine, it forms a(n) ______________ compound.
a. ionic
b. metallic
c. covalent
d. organic
[Ques. 10] Intrusive igneous rock formations that lie more or less parallel to older formations are said to be ______________.
a. recordant
b. discordant
c. concordant
d. precordant
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