Out of the given four mixtures, the one that appears clear and transparent is: a) Chalk powder and water
b) Sand and water
c) Starch and water
d) Sugar and water

d) Sugar and water

Explanation:

The sugar and water solution will have a clear and transparent outlook.

When we look at a solution of a mixture of sugar and water, it a homogenous one.

A homogenous solution have their solution in one phase.

The solute is sugar and the solvent is water.

The solution obtained is colorless therefore, light will pass through without any obstruction.

The other solutions will be translucent or opaque

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.