Get premium membership and access questions with answers, video lessons as well as revision papers.
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
- 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. Answers (1)
- Give the uses of sulphuric (vi) acid(Solved)
Give the uses of sulphuric (vi) acid
Date posted: March 4, 2018. Answers (1)
- Outline the physical properties of hydrogen sulphide.(Solved)
Outline the physical properties of hydrogen sulphide.
Date posted: March 4, 2018. Answers (1)
- Outline the physical properties of dilute sulphuric (vi) acid.(Solved)
Outline the physical properties of dilute sulphuric (vi) acid.
Date posted: March 4, 2018. Answers (1)
- Outline the physical properties of sulphur (iv) oxide.(Solved)
Outline the physical properties of sulphur (iv) oxide.
Date posted: March 4, 2018. Answers (1)
- Outline the uses of sulphur(Solved)
Outline the uses of sulphur
Date posted: March 4, 2018. Answers (1)
- What are the chemical properties of sulphur?(Solved)
What are the chemical properties of sulphur?
Date posted: March 4, 2018. Answers (1)
- What are the allotropes of sulphur?(Solved)
What are the allotropes of sulphur?
Date posted: March 4, 2018. Answers (1)
- What are the chemical properties of hydrochloric acid?(Solved)
What are the chemical properties of hydrochloric acid?
Date posted: March 4, 2018. Answers (1)
- Give the uses of hydrochloric acid.(Solved)
Give the uses of hydrochloric acid.
Date posted: March 4, 2018. Answers (1)
- Outline the physical properties of hydrochloric acid.(Solved)
Outline the physical properties of hydrochloric acid.
Date posted: March 4, 2018. Answers (1)
- Outline the physical properties of hydrogen chloride(Solved)
Outline the physical properties of hydrogen chloride
Date posted: March 4, 2018. Answers (1)
- Outline the uses of chlorine(Solved)
Outline the uses of chlorine
Date posted: March 4, 2018. Answers (1)
- Outline the physical properties of chlorine.
(Solved)
Outline the physical properties of chlorine.
Date posted: March 4, 2018. Answers (1)
- 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. Answers (1)
- (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. Answers (1)
- 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. Answers (1)
- Outline the uses of nitric (v) acid.
(Solved)
Outline the uses of nitric (v) acid.
Date posted: February 28, 2018. Answers (1)
- What are the chemical properties of nitric (v) acid? (Solved)
What are the chemical properties of nitric (v) acid?
Date posted: February 28, 2018. Answers (1)
- Give physical properties of nitric (v) acid.
(Solved)
Give physical properties of nitric (v) acid.
Date posted: February 28, 2018. Answers (1)