Question 1

Which of the following molecules contains a non-polar covalent bond in a non-polar molecule?

Accepted Answer

CH$$_4$$

Question 2

Which of the following is properly arranged in order of increasing polarity?

Accepted Answer

MgS \u003c MgO \u003c NaCl \u003c NaF

Question 3

What is the correct nomenclature for Na$$_2O $$and CO$$_2$$?

Accepted Answer

Sodium oxide; carbon dioxide

Question 4

Which of these is correctly named?

Accepted Answer

HF: Hydrofluoric acid

Question 5

How many pi bonds and sigma bonds are present in the molecule below?

$$\ce{H-C#C-C#N}$$

Accepted Answer

6 sigma bonds, 3 pi bonds

Question 6

According to molecular orbital theory, is CO diamagnetic or paramagnetic?

Accepted Answer

Diamagnetic

Question 7

Determine the bond order of CN$$^-.$$

Accepted Answer

3

Question 8

As the number of bonds between two atoms increases, which of the following decreases?

Accepted Answer

Bond length

Question 9

Give the electron geometry, molecular geometry, and hybridization for KrF$$_4.$$

Accepted Answer

Octahedral, square planar, $$dsp^2$$

Question 10

Which of the following molecules has a dipole moment?

Accepted Answer

SO$$_2$$

Question 11

What is the formal charge on C and N in CN$$^-$$?

Accepted Answer

C: -1, N: 0

Question 12

Considering the Lewis structure for ammonia (NH$$_3$$), what is the hybridization around the central atom?

Accepted Answer

$$sp^3$$

Question 13

What is the hybridization of the central atom of ICl$$_3$$?

Accepted Answer

$$dsp^3$$

Question 14

The molecular geometry of SbCl$$_5 is$$:

Accepted Answer

Trigonal bipyramidal

Question 15

What is the bond angle in NH$$_3$$?

Accepted Answer

107$$^	ext{o}$$

Question 16

Which of the following is associated with its correct molecular structure?

Accepted Answer

BeCl$$_2$$, linear

Question 17

Order the following compounds by increasing lattice energy: KCl, NaCl, K$$_2O$$, CaO.

Accepted Answer

KCl \u003c NaCl \u003c K$$_2O$$ \u003c CaO

Question 18

How many TOTAL different resonance structures are there for sulfite (SO$$_3$$^{2-}$$)?

Accepted Answer

3

Question 19

Which of the pairs both have a neutral formal charge on the central atom?

Accepted Answer

BF$$_3$$ and sulfate

Question 20

Which of the following contains ionic bonds in addition to covalent bonds?

Accepted Answer

Na$$_3PO$_4$$

General Chemistry: Chemical Bonding, Molecular Structure, and Lattice Energy Study Guide

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