Chapter 2, Problem 9STP

Interpretation Introduction

Interpretation: The figure that represents gaseous compound needs to be determined.

Concept Introduction: Practically all of the matter in environment consists of mixtures of different substance. For example, soil; it has many forms of components, air; it has mixture of many gases, etc.

Answer to Problem 9STP

Correct answer: Option C

Explanation of Solution

Reason for correct option:

In gases, atoms & molecules are much more spread out as compared to solids and liquids. Gases are not rigid as compare to liquid and solid. They do not have definite shape and definite volume.

At a particular temperature, gas is a compound’s state. The unlimited particles in gaseous compound are molecules, which in turn made up of atoms of an element in the compound. Gaseous compound is loosely packed together and will be more spaciously distributed. According to this, figure C represents a gaseous compound.

Conclusion

Reasons for incorrect options:

Option A: Figure A does not satisfy the condition of gaseous compound. So, this is an incorrect option.

Option B: Figure A does not satisfy the condition of gaseous compound. So, this is an incorrect option.

Option D: Figure C does not satisfy the condition of gaseous compound. So, this is an incorrect option.

Option E: Figure D does not satisfy the condition of gaseous compound. So, this is an incorrect option.