| Which of the following are homogeneous in nature? (NCERT Exemplar) |
| I. Ice |
| II. Wood |
| III. Soil |
| IV. Air |
A) I and III
B) II and IV
C) I and IV
D) III and IV
Correct Answer: C
Solution :
[c]| Options (I) Ice and (IV) Air are homogeneous in nature as their particles are not distinctly visible. A homogeneous mixture has a uniform composition throughout its mass. |
| It has no visible boundaries of separation between its various constituents, e.g. ice, air, sugar solution, brass, etc. |
| A heterogeneous mixture does not have a uniform composition throughout its mass. It has visible boundaries of separation between its various constituents, e.g. soil, wood, blood etc. |
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