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Chemistry Quiz by pain_slayer08

Total questions: 20

Worksheet time: 9mins

Name
Class
Date
1.

How many states do matter have?

a)

2

b)

3

c)

4

d)

5

2.

What is the chemical name of mercury?

a)

Plumbum

b)

Hydragyrum

c)

Oxygen

d)

Nihonium

3.

The modern and the most efficient technique of separating coloured substances is called (a)  

4.

What is the percentage of nitrogen in the air?

a)

78.00%

b)

78.02%

c)

78.03%

d)

78.01%

5.

It was the discovery of Oxygen by (a)  

6.

In fire extinguishers, the gas used is -

a)

Hydrogen

b)

Carbon Dioxide

c)

Oxygen

d)

Nitrogen

7.

Rust is -

a)

Hydrogen Peroxide

b)

Iron sulphate

c)

Hydrated iron oxide

d)

Iron oxide

8.

Marble is a form of -

a)

Calcium chloride

b)

Calcium hydroxide

c)

Calcium carbonate

d)

Calcium sulphide

9.

Duralumin is an alloy of aluminium and -

a)

Magnesium

b)

Calcium

c)

Sodium

d)

All of these

10.

How many atoms of Hydrogen are there in water compound?

a)

2

b)

1

c)

3

d)

4

11.

What is the atomic no. of hydrogen?

a)

2

b)

1

c)

8

d)

3

12.

What is the atomic no. of oxygen?

a)

1

b)

5

c)

7

d)

6

e)

8

13.
What is the chemical formula for this molecule?
a)
C6H6O6
b)
C6H606
c)
C6H12O6
d)
6C12H6O
14.
What is a compound?
a)
One single atom
b)
Many atoms of the same element
c)
A molecule made of more than one element
d)
Everything is made of matter 
15.
What is an element?
a)
An element is an atom and two atoms
b)
An element is one or more atoms of the same kind.
c)
An element is more than one of different kinds
16.
How many atoms of Nitrogen are in this molecule?
a)
3
b)
2
c)
0
d)
1
17.

The smallest particle that all matter is made from is ....

a)

Matter

b)

Elastic Energy

c)

Atom

d)

Helium

18.
Dry ice (solid carbon dioxide) turning into carbon dioxide gas is a 
a)
physical change
b)
chemical change
19.
An iron nail rusting is a _______________ change. The ________________ property of reactivity explains the iron’s ability to form a new substance. 
a)
physical, physical            
b)
physical, chemical 
c)
chemical, chemical 
d)
chemical, physical 
20.
During Mr. Nye's science class, students were expected to identify various substances using physical properties they could easily measure. Mr. Nye gave each of the five groups a green, metal cube and asked them to identify what the cube was made of. Matt's cube, after 5 trials, had an average density of 7.40 g/cm3 . His group's cube was made of
a)
aluminum
b)
gold
c)
nickel
d)
zinc

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