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Worksheets5.1 Oxygen
Total questions: 10
Worksheet time: 5mins
Which of the following people are supposed to have discovered Oxygen
Joseph Priestly
Carl Wilhelm Scheele
Antoine Lavoisier
All of the above
The atomic number of oxygen is ______.
17
8
56
9
Oxygen combines with elements to form _____________.
Oxides
Mixtures
Oxidations
Oxygen is the most abundant gas in air.
True
False
What is the colour of solid and liquid oxygen?
Dark blue
Pale blue
Pale yellow
Pale pink
How does oxygen gas collected in the laboratory preparation?
downward displacement of air
upward displacement of air
downward displacement of water
upward displacement of water
Sulphur dioxide is
basic oxide
acidic oxide
amphoteric oxide
compound oxide
The hydrogen peroxide is decomposed in the presence of manganese dioxide into .......
water and hydrogen
water and oxygen
oxygen and hydrogen
What was the chemical name given to Rust ?
Carbon
Iron Oxide
Iron Oxygen
Magnesium Oxide
