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Quiz states of matter
Activity
Select the correct answer from the available options.
1) Which statement correctly describes the volume and shape of a gas?
It has a fixed shape and a fixed volume
It has an indefinite shape and a fixed volume
It has a fixed shape and an indefinite volume
It takes the shape of the container and expands to fill the container
2) Which of the following is a state of matter?
Salt and water mixture
Liquid
Suspension
Precipitate
All of the above
3) Which of the follow terms best describes the conversion of a solid to a liquid?
Vaporisation
Freezing
Condensation
Melting
4) Which of the following statement describes a chemical property?
a. Copper objects turn green when exposed to moist air for a pro- longed period.
b. Aluminium metal is a solid at room temperature.
c. Potassium metal reacts vigorously with water to form potassium hydroxide solution and hydrogen gas.
d. The density of Lithium metal is 0.534g/ml at 20◦C.
e. a and c.
5) Which of the following is a chemical property?
Colour
State of matter
Boiling point
Corrosiveness
Hardness
6) Which of the following is a physical property?
Flammability
Reactivity
Size
Decomposition
7) Which of the following is a heterogeneous mixture?
An emulsion
A chocolate chip cookie
Carbon
Salt
Sugar dissolved in water
8) Which of the following is an element?
Carbon
Water
Coffee
Paracetamol
9) Which of the following is a pure substance?
Seawater
Concrete
Hydrogen
Tea
10) Which of the following statements is true?
All heterogeneous mixtures must contain three or more components
Pure substances cannot be broken down into simpler substances by physical methods
Sugar is an element
Water, salt and sand mixture is an example of a homogeneous mixture
11) Which of the following substances takes the shape of the container and has a definite volume?
Helium gas
Salt crystals
Glass of fruit juice
Stainless steel wire
12) Sulphuric acid is a highly corrosive strong mineral acid composed of H, S and O atoms. Pure sulphuric acid has a melting point of 10°C and a boiling point of 337°C. What is the physical state of sulphuric acid at room temperature (25°C)?
Solid
Liquid
Gas
Gel
13) Methane is a gas that is also the main component of natural gas. It has a melting point of -182°C and a boiling point of -161.6°C. In what state does it exist at room temperature (25°C)?
Solid
Liquid
Gas
Gel
14) Which of the following statements is true?
Being a liquid at room temperature is a chemical property of Mercury.
Resisting change when exposed to air for a prolonged period is a chemical property of Gold.
Noble gases reacting less with the environment is a physical property of noble gases.
Having a reddish-brown colour is a chemical property of Copper.
15) Which of the following is a physical change?
Burning a newspaper
Steel girders become rusty when left open to moist air
Carbonic acid in soft drinks decomposes to carbon dioxide in the stomach after consumption
Pulverising a paracetamol tablet into a powder
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