Question

Heterogeneous mixture is:
(A) Blood
(B) Ice in soda
(C) Salad dressing
(D) All of these

Answer 1

Hint: Heterogeneous mixture is easily identified because it is composed of non-uniform components. There is more than one phase present in the heterogeneous mixture. The phase of heterogeneous mixtures is not completely miscible with each other.

Complete Step By Step Answer:
Blood is composed of a number of constituents some of which are liquids while some are solid in nature. Liquid constituents of blood include water, water soluble proteins or salts. Solid constituents of blood include various cells like RBC, WBC, platelets. These solid constituents of blood are dissolved in blood and are easily separated by any physical method. Therefore, blood is an example of heterogeneous mixture.
As in the case of Ice in soda we already know that ice is present as a solid phase while soda is a liquid preparation. This mixture contains two components of different phases one is in liquid phase while other is in solid phase. Therefore, ice in soda is an example of heterogeneous mixture.
Salad dressing is composed of various ingredients like oil, vegetables, lemon juice or some may add mayonnaise in it. as we see that Salad dressing is made up of constituents which are present in more than one phase like lemon juice in liquid phase and vegetables in solid. Therefore, salad dressing is an example of heterogeneous mixture.

The correct answer is C:

Note:
Mixtures are of various types like gaseous solution (air contains smoke), liquid solution (water and salt) and solid solution (alloys of different metals). Heterogeneous mixture is not completely blended with their constituents and parts of the mixture are easily separated physically.