Question

A mixture of sulfur and carbon disulfide is

• A. heterogeneous and shows Tyndall effect
• B. homogeneous and shows Tyndall effect
• C. heterogeneous and does not show Tyndall effect
• D. homogeneous and does not show Tyndall effect

Answer 1

The correct option is A

heterogeneous and shows Tyndall effect

Explanation for correct option:

(A) heterogeneous and shows the Tyndall effect

Heterogenous mixture:

• The mixture in which the composition is not uniform is known as a heterogeneous mixture.
• Mixtures in two or more phases are heterogeneous mixtures.
• Examples of heterogeneous mixtures are muddy water as well as a mixture of sulfur and carbon disulfide.

Properties of heterogenous mixture:

• The components of a heterogeneous mixture can be separated easily by physical methods.
• The particles in this mixture are not uniform.
• The heterogeneous mixture shows the Tyndall effect. (It is the method of scattering of the light by the particles present in the colloidal solution when viewed at right angles to the passage of light.)

Explanation for incorrect options:

The mixture of carbon disulfide and sulfur is a heterogeneous mixture and shows the Tyndall effect. Thus, options B, C, and D are incorrect.

Hence, the correct option is A i.e. heterogeneous and shows the Tyndall effect.