Q. 73.6( 109 Votes )

Which of the foll

Answer :

A pure substance is made up of only one kind of particles. All the constituent particles of a pure substance are the same in their chemical nature. These particles may be atoms or molecules. All the elements and compounds are pure substances because they contain only one kind of particles. A pure substance cannot be separated into other kinds of matter by any physical process. A pure substance has a fixed composition as well as a fixed melting point and boiling point.

Pure substances are: Ice, Iron, Hydrochloric Acid, Calcium oxide and Mercury. All these substances are pure because these are made of same kind of atoms or molecules. They have fixed melting or boiling points.

On the other hand, Brick, Air, Milk and wood are not pure substances because all of these do not have a fixed composition. Air is a mixture of gases in which the composition of gases is not fixed. Milk is a colloidal solution.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses

Which of the follLakhmir Singh & Manjit Kaur - Chemistry

There are three sLakhmir Singh & Manjit Kaur - Chemistry

Iron powder and sLakhmir Singh & Manjit Kaur - Chemistry

Which of the follNCERT Science - Exemplar

Which of the follLakhmir Singh & Manjit Kaur - Chemistry

Define a compoundLakhmir Singh & Manjit Kaur - Chemistry

Give two reasons Lakhmir Singh & Manjit Kaur - Chemistry