Salad dressing is an example of a heterogeneous mixture. The reason it is heterogeneous is because not everything is perfectly mixed in together. In most salad dressings, there are chunks or particles that you can visibly see and separate. For the mixture to be considered homogeneous, everything would have to be combined smoothly, you wouldn't be able to see any chunks, and nothing would have been able to be separated, at least by physical means.
A mixture is a solution or a suspension that is made up of two or more components. Mixtures can be classified as:
This heterogeneous mixture is a suspension of oil and vinegar.
An Italian salad dressing is a mixture that is made up of components such as oil, vinegar, spices e.t.c
When oil mixes with vinegar the solution formed is called an immiscible solution. This is because oil mixing with vinegar does not form a uniform solution.
Hence, a mixture of oil and vinegar is a heterogeneous mixture.
Therefore, the correct option is Option A.
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