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Which of the following is an example of heterogeneous solution?
Lemonade
Tincture of iodine
Mixture of ethanol and water
Mixture of oil and water
Mixture of oil and water
A mixture of oil and water is a classic example of a heterogeneous solution (or more accurately, a heterogeneous mixture/emulsion). In a heterogeneous mixture, the components do not mix uniformly and maintain distinct phases with visible boundaries between them.
A mixture of oil and water is a classic example of a heterogeneous solution (or more accurately, a heterogeneous mixture/emulsion). In a heterogeneous mixture, the components do not mix uniformly and maintain distinct phases with visible boundaries between them.
Oil floating on chicken soup or vinegar separating from olive oil in a salad dressing.
Hetero = Different (visible boundaries), Homo = Same (uniform throughout).
\text{Density} =$$\frac{\text{Mass}}{\text{Volume}} тАФ Determines┬аwhich┬аliquid┬аfloats┬аabove
Oil is non-polar and hydrophobic (water-fearing), whereas water is polar and hydrophilic. Due to the significant difference in polarity and intermolecular forces (hydrogen bonding in water versus London dispersion forces in oil), oil and water do not form a uniform solution. Instead, they separate into distinct layers based on density.
Heterogeneous mixtures have non-uniform composition throughout.
Tincture of iodine, ethanol and water, and salt/sugar solutions are homogeneous mixtures (solutions).
Oil and water form an immiscible, heterogeneous liquid-liquid mixture.
Allows easy physical separation of components using a separating funnel.
Lacks uniformity, making it impossible to take a consistent sample.
Liquid-liquid extraction processes in chemical laboratories.
Separating oil spills from water surfaces.
Tincture of iodine is a homogeneous mixture of iodine dissolved in alcohol and water.
Mixture of ethanol and water is completely miscible and forms a homogeneous solution.
D is correct тАФ Mixture of oil and water is a heterogeneous mixture because oil and water are immiscible and form two distinct layers with a visible boundary.
Always remember: Solutions (like salt in water or alcohol in water) are homogeneous, whereas suspensions, colloids, and immiscible liquid mixtures are heterogeneous.
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