Free Study Material

NCERT Solutions

NCERT Books

Revision Notes

Practice Problems

This is the second of our many quizzes on Classifying matter. Click on this to access more such competitive quizzes on General Chemistry.

Classifying matter Quiz 2

chemistry

 The given options below are the properties of solid, pick the odd one out?

 The number of molecules in the gases is responsible for the density of the substance.

 $\text{In the given options, option (b) seems to be incorrect} \\ \text{because in solids the density is high due to} \\ \text{which the molecules are very close to each other.} \\ \text{The molecules are less closely packed} \\ \text{ in liquids and gases.}$

It has been recently discovered the fourth state of matter as plasma state that contains:

 The gaseous state is heated to a very high temperature to form the fourth state.

 $\text{The fourth state of matter is known as the plasma state} \\ \text{and it contains electrons and positively} \\ \text{charged ions which are formed by a superheated} \\ \text{gaseous state.}$

  We know that usually there are three states of matter, i.e., solid, liquid, and gas. But there is a point or temperature at which these three states coexist of a particular substance, and that is known as:

 The point at which all the states i.e., solid, liquid, and gas will co-exist and will have a name of three states.

 $\text{The three states of matter at which all the states} \\ \text{i.e., solid, liquid, and gas will coexist with} \\ \text{each other is known as the triple point.} \\ \text{At this temperature, the pressure is also specific.}$

 Which layer will have the highest density and highest compressibility? <img  src="https://cmds-vedantu.s3.ap-southeast-1.amazonaws.com/prod/question-sets/da1a4493-a4e2-4ab1-b8b6-c8787c7fc82d3564113987154081677.png"/>

 High density means the atoms must be very close to each other and high compressibility means there must be large spaces.

 $\text{The highest density means the number of molecules} \\ \text{must be highest and the highest number} \\ \text{of molecules is in the C part, and this represents} \\ \text{the solid form. The highest compressibility means} \\ \text{the molecules must be very far from each other so that} \\ \text{they can be compressed to come closer.} \\ \text{This is possible in part A and it represents the gaseous form.}$

 Some properties are given below:<br>(A)- In me, there is freedom of movement of particles and some translatory and rotatory motion.<br>(B)- In me, there are large rotators, vibratory, and translator motions.<br>(C)- In me, the molecules are fixed and don't have a rotator, and translator motion. <br>Identify A, B, and C

 The rotator, vibratory, and translator motions are the three types of motion that are defined in the three states of matter.

 $\text{A.In me, there is freedom of movement of particles and have some} \\ \text{translatory and rotatory motion, which means it is liquid.}\\ \text{B.In me, there are large rotators, vibratory, and} \\ \text{translator motions mean it is gas.} \\ \text{C.In me, the molecules are fixed and don't have} \\ \text{a rotator, and translator motion means it is solid.}$