The gases,nitrogen and oxygen are first cooled to liquid state then fractional distillation is done in a fractionating column. Nitrogen gas distils faster since it has a low boiling point of -196°C than oxygen. Oxygen then distils of at -183°C. Through this we obtain pure nitrogen from the mixture.
faychero answered the question on March 13, 2018 at 14:13
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Describe and explain the laboratory preparation and properties of hydrogen chloride
(Solved)
Describe and explain the laboratory preparation and properties of hydrogen chloride
Date posted:
March 4, 2018
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Give the uses of sulphuric (vi) acid
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March 4, 2018
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Outline the physical properties of hydrogen sulphide.
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Outline the physical properties of hydrogen sulphide.
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March 4, 2018
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Outline the physical properties of dilute sulphuric (vi) acid.
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March 4, 2018
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(Solved)
Outline the physical properties of sulphur (iv) oxide.
Date posted:
March 4, 2018
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Outline the uses of sulphur
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March 4, 2018
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What are the chemical properties of sulphur?
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March 4, 2018
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What are the allotropes of sulphur?
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March 4, 2018
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(Solved)
What are the chemical properties of hydrochloric acid?
Date posted:
March 4, 2018
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Give the uses of hydrochloric acid.
(Solved)
Give the uses of hydrochloric acid.
Date posted:
March 4, 2018
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Outline the physical properties of hydrochloric acid.
(Solved)
Outline the physical properties of hydrochloric acid.
Date posted:
March 4, 2018
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Answers (1)
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Outline the physical properties of hydrogen chloride
(Solved)
Outline the physical properties of hydrogen chloride
Date posted:
March 4, 2018
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(Solved)
Outline the uses of chlorine
Date posted:
March 4, 2018
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Write an equation that occurs when chlorine water is left in the sun
(Solved)
Write an equation that occurs when chlorine water is left in the sun
Date posted:
March 4, 2018
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Answers (1)
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(i) Give symbols for the following elements: carbon, magnesium, potassium, oxygen (ii) Identify the elements in the following compounds: calcium carbonate, potassium chloride
(Solved)
(i)Give symbols for the following elements
Carbon
Magnesium
Potassium
Oxygen
(ii)Identify the elements in the following compounds
calcium carbonate
potassium chloride
Date posted:
March 2, 2018
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Answers (1)
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Which of the two metals Cu and Mg would be more degraded as a result of storage? Explain
(Solved)
Which of the two metals Cu and Mg would be more degraded as a result of storage? Explain
Date posted:
March 1, 2018
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(Solved)
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February 28, 2018
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(Solved)
What are the uses of ammonia.
Date posted:
February 28, 2018
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(Solved)
Outline the chemical properties of ammonia.
Date posted:
February 28, 2018
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Give the physical properties of ammonia.
(Solved)
Give the physical properties of ammonia.
Date posted:
February 28, 2018
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Answers (1)