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10 questions
Is air compressible?
Yes
No
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
Is oxygen a metal or a non-metal?
Metal
Non-metal
Metalloid
Noble gas
What is the colour of solid and liquid oxygen?
Dark blue
Pale blue
Pale yellow
Pale pink
What other colours does oxygen exist in?
Pink
Orange
Red
Brown
On the basis of abundance at which level is oxygen?
5th
3rd
1st
15th
Which is more soluble in water?
Oxygen
Nitrogen
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