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Brush up

Total questions: 15

Worksheet time: 9mins

Name
Class
Date
1.
What type of bond is shown in this image?
a)
Ionic
b)
Polar Covalent
c)
Nonpolar Covalent
d)
Van der Waals Force
2.
Which of the following is NOT formed by a covalent bond?
a)
K2S
b)
H2O
c)
I2
d)
CO2
3.
Which of the following is relevant for copper?
a)
Ion
b)
Ionic bonding
c)
Metallic bonding
d)
Covalent bonding
4.
What is the formula for manganese(III) oxide?
a)
MgO
b)
Mg2O3
c)
MnO
d)
Mn2O3
5.

Which two families of elements are soft and silvery and have low densities? Choose two.

a)

alkali metals

b)

alkaline earth metals

c)

noble gases

d)

halogens

e)

transition metals

6.
What structure is shown in the diagram?
a)
Diamond
b)
Graphite
c)
Carbon fiber
d)
Carbon nanotubes
7.
Graphite is a good conductor because
a)
all electrons are free moving electrons
b)
free delocalization of electrons in its 3D lattice structure
c)
free delocalized electrons in a 2D layered structure
d)
covalently bonded layers allow electricity to flow
8.
What type of reaction occurs in a hand warmer
a)
exothermic
b)
endothermic
9.

Have you ever eaten sherbet sweets candy? They fizz in your mouth and your tongue feels cold. Why do you think that is? Select all the correct option ( More than one option)

a)

It is an exothermic reaction

b)

It is an endothermic reaction

c)

It is made of ice

d)

carbon dioxide is produced

10.
On the chromatogram given -------------- is mixture.
a)
red
b)
orange
c)
green
d)
black
11.

The diagram below shows a chromatogram obtained when a sample X was analysed together with four other known dyes P, Q, R and S. Dye Q was known to cause cancer. Which of the following dye(s) is/are safe for use?

a)

P only

b)

S only

c)

P and S

d)

P and X

12.
Identify the states of matter where Brownian Motion can occur.
a)
a) Solid, liquid, gas
b)
b) Liquid, gas
c)
c) Solid, gas
d)
d) Solid, liquid
13.
Which letter in the diagram of Industrial Crude Oil Fractions identifies 'Bitumen'?
a)
B
b)
D
c)
G
d)
H
14.

Which of the following fuels is used in aircraft’s?

a)

Bitumen

b)

Gasoline

c)

Diesel

d)

Natural gas

15.
The diagram shows the apparatus for separating soil and water. What are the labelled parts?
a)
A = distillate, B = filtrate
b)
A = filtrate, B = residue
c)
A = residue, B = filtrate
d)
A = residue, B = distillate

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