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Quiz : The Shape & Polarity of the Molecule

Total questions: 10

Worksheet time: 30mins

Name
Class
Date
1.

Which of the following compounds is not a linear molecule?

a)

HCN

b)

SO2

c)

BeCl2

d)

XeF2

2.

Which of the following molecules has the smallest bond angle?

a)

CH4

b)

BF3

c)

NH3

d)

XeF4

3.

Which of the following compounds is most polar?

a)

CCl4

b)

PCl5

c)

HCl

d)

CO2

4.

The central atom is bonded to three terminal atoms and has two lone pairs. The central atom could be?

a)

silicon

b)

chlorine

c)

xenon

d)

phosphorus

5.

Choose the molecule that has polar bonds but is itself a non-polar molecule.

a)

CF4

b)

ClF3

c)

NF3

d)

SF4

6.

The shape of the BH₃ molecule is trigonal planar, while NH₃ has a trigonal pyramidal shape. Choose the best statement to describe these observations.

a)

Boron has larger atomic size than nitrogen

b)

Boron has three valence electrons while nitrogen has five valence electrons

c)

Nitrogen is more electronegative than boron

d)

Boron is metalloid while nitrogen is non-metal

7.

The bond angles in NH3 are bigger than bond angles in H2O because

a)

all the bonding electrons in NH3 repel each other equally

b)

the nonbonding electrons in H2O exert greater repulsive forces on bonding electrons.

c)

oxygen is more electronegative than nitrogen and the O-H bond is more polar than N-H bond

d)

oxygen has smaller atomic size than nitrogen.

8.

Choose the molecule that has a bent shape.

a)

BeCl2

b)

OF2

c)

CO2

d)

XeF2

9.

Choose the ionic compound that has the greatest ionic character from the following chloride compounds.

a)

AlCl3

b)

MgCl2

c)

AgCl

d)

BeCl2

10.

The most polar bond occurs between hydrogen and........

a)

nitrogen

b)

fluorine

c)

oxygen

d)

carbon