Question

test of nitrogen and carbon dixiode​

Answer 1

Answer:

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Explanation:

General Tests for Nitrogen Gas

1) Nitrogen gas , N 2 (g) has no colour or smell .

2) Nitrogen gas has no effect on moist litmus paper.

3) Nitrogen gas will put out a lit splint .

Carbon Dioxide

There are two tests for carbon dioxide. Firstly it will extinguish a flame, however, as any oxygen free gas will also extinguish a flame this is a poor gas test and may result in misidentification.

The best way of testing for Carbon dioxide is to bubble it through lime water. A positive test will result in the lime water turning milky. Lime water turns milky as the Calcium hydroxide (chemical name for limewater) reacts with carbon dioxide to form Calcium Carbonate which is insoluble in water and thus forms a milky white precipitate.

Answer 2

A mixture of nitrogen and carbon dioxide can be distinguished by passing it through lime water.