Carbon disulphide vapour bums in oxygen according to the following equation.
CS2(g) + 302(g) - CO2(g) + 2502(g)
A sample of 10 cm of carbon disulphide was burned in 50 cm of oxygen. After measuring the volume of gas remaining, the product was treated with an excess of aqueous sodium hydroxide and the volume of gas measured again. All measurements were made at the same temperature
and pressure, under such conditions that carbon disulphide was gaseous.
What were the measured volumes?
volume of gas after buming/cm (50)
volume of gas after adding NaOH(aq) cm (20).
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Answer:
A mixture of sulphur and carbon disulphide is heterogeneous and shows Tyndall effect.
A mixture of sulphur and carbon disulphide is a heterogeneous colloid* and shows Tyndall effect. The Tyndall effect is scattering of light by particles in a colloid. Colloids appear to be homogeneous but they are actually heterogeneous in nature. Milk and fog are some other examples of colloids.
Explanation:
Colloids are the substances that have some other substances dispersed in the solution and these particles do not settle down at the bottom.
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