At room temperature, a melting solid produces a whitish liquid. a laser beam shined through the liquid is unaffected and produces a distinct beam of light. the liquid is a heterogeneous mixture an element a solution a colloid

The liquid is a solution.

Explanation:

A heterogeneous mixture is defined as the mixture in which component are unevenly spread throughout the solution. The size and shape of the particles differ in these mixtures. These mixture scatter the light falling on it.

An element is defined as the substance which is made of similar kind of atoms. All the atoms in an element have same atomic number.

A solution is defined as the solution in which the components gets completely dissolved in it. Particles are evenly spread in these solutions. These solution does not scatter light falling on it.

A colloid is defined as the mixtures when physical boundary is seen between the dispersed phase and dispersed medium. They scatter the light falling on it.

We are given a liquid which when dissolved in water forms a whitish liquid and does not affect the light falling on it.

Hence, the liquid is a solution.

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