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2sec online quiz 2

Total questions: 10

Worksheet time: 30mins

Name
Class
Date
1.

which state of the following the ionic compound conduct the electricity?

a)

solid state

b)

aqueous state

c)

divided it to small parts

d)

divided it to large parts

2.

All the following compounds obey the octet rule , except……

a)

NF3

b)

PF3

c)

IF3

d)

SbF3

3.

Which of the following compounds molecules contains 2 bond pairs and lone pairs of

electrons?

a)

NH3

b)

SO2

c)

H2S

d)

BF3

4.

The number of electron lone pairs in H2O molecule equals the number of electron bond

pairs in the molecule of ….

a)

H2S

b)

CO2

c)

HCl

d)

N2

5.

What is the stereo structure of the molecule of CHCl3?

a)

Angular

b)

planar triangle

c)

tetrahedron

d)

three –base pyramid

6.

which of the following two molecules both have linear stereo structure?

a)

BF3,NH3

b)

H2O,SO2

c)

BeF2,CO2

d)

BF3 ,SO2

7.

In which of the following molecules would the angle between the bonds be the highest?

a)

CO2

b)

BF3

c)

CCl4

d)

NF3

8.

Which of the following sets of molecules is ordered descending according to the values

of the angles between the bonds in each molecule?

a)

CCl4> CO2>NF3>BF3

b)

CO2>BF3 >CCl4>NF3

c)

CO2>NF3>BF3>CCl4

d)

CCl4>BF3>CO2>NF3

9.

Which of the following abbreviations represents a nonpolar molecule whose stereo

structure is a tetrahedron?

a)

AX3

b)

AX4

c)

AX2

d)

AX3E

10.

In OF2 molecule , the value of the angle between the bonds is….

a)

109.50

b)

greater than 109.50

c)

Less than 109.50

d)

1800