Question

Which of the following mixtures are correctly classified as homogeneous (Hm) and heterogeneous (Ht)? Choose the correct option.

Options

• Air - Hm, Milk - Ht, Sugar solution - Hm, Smoke - Hm

• Brass - Ht, Fog - Ht, Vinegar - Ht, Muddy water - Hm

• Copper sulfate solution - Hm, Salt solution - Hm, Milk - Hm, Bronze - Hm

• Muddy water - Ht, Milk - Ht, Blood - Ht, Brass - Hm

Answer 1

Muddy water - Ht, Milk - Ht, Blood - Ht, Brass - Hm

Explanation:

Blood and milk are colloids, whereas muddy water is a suspension. They are hence heterogeneous mixes. Brass is a homogenous composition that is an alloy.

The other options are incorrect because milk is a colloid, which makes it heterogeneous rather than homogeneous, smoke is heterogeneous rather than homogeneous, and brass and vinegar are homogenous rather than heterogeneous.