Is lead chloride ( pbcl2) solution, substance, homogenous mixture or heterogeneous mixture?

Lead chloride solution is a SUBSTANCE.
All the matters in the universe can be divided into two basic classes, these are pure substances and mixtures. A pure substance can be an element or a compound. Mixtures are made up of two or more different particles while pure substances are made up of identical particles. Lead chloride is an inorganic compound and is considered to be a pure substance; it also occurs as a minerals. 

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Ch4 is nonpolar and insoluble in water. since all of the hydrogen atoms are evenly spread around the carbon atom even through the c h bond is polar all the poles cancel each other out.