In an experiment, carbon (IV) oxide gas was passed over heated charcoal and the gas produced collected as shown in the diagram below.

      

In an experiment, carbon (IV) oxide gas was passed over heated charcoal and the gas produced collected as shown in the diagram below.
charcoal4102017509.jpg
i) Write an equation for the reaction that took place in the combustion tube.
ii) Name another substance that can be used instead of sodium hydroxide
iii) Describe a simple chemical test that can be used to distinguish between carbon (IV) oxide and carbon (II) oxide.
iv) Give one use of carbon (II) oxide.

  

Answers


John
i) $C_{(s)} + CO_{2(g)} \rightarrow 2CO_{(g)}$

ii) Potassium hydroxide or Calcium hydroxide

iii) Pass the gas through lime water (carbon (IV) oxide forms a white precipitate but carbon (II) oxide does not give precipitate)

iv) Used in: - Extraction of metals as a reducing agent

- Manufacture of methanol

johnmulu answered the question on April 10, 2017 at 14:13


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