which of these is not a homogeneous mixture?\no sugar dissolved in water\no a silver mercury amalgam used to…

which of these is not a homogeneous mixture?\no sugar dissolved in water\no a silver mercury amalgam used to fill a tooth cavity\no oxygen and nitrogen gases in the air\no oil and vinegar salad dressing

which of these is not a homogeneous mixture?\no sugar dissolved in water\no a silver mercury amalgam used to fill a tooth cavity\no oxygen and nitrogen gases in the air\no oil and vinegar salad dressing

Answer

Brief Explanations:

A homogeneous mixture has uniform composition throughout. Sugar - water is a solution, silver - mercury amalgam is a homogeneous alloy, and air is a homogeneous gas mixture. Oil and vinegar salad dressing separates into layers as oil is non - polar and vinegar is polar, making it a heterogeneous mixture.

Answer:

oil and vinegar salad dressing