Advertisements
Advertisements
प्रश्न
Give the main difference between a pure substance and an impure substance.
Advertisements
उत्तर
- Pure substance:
- It is made up of only one kind of particles
- Unadulterated
-
Impure substance:
- It is made up of two or more toxic particles
- Adulterated
APPEARS IN
संबंधित प्रश्न
Connect with sports Air is not a pure substance. It helps us in many ways from breathing to playing. Balloon sports are a very popular sport. Hot air is lighter than cool air. So, the balloons filled with hot air rise up. Find out more about hot air balloons.
Which of the following are pure substances? Ice, Milk, Iron, Hydrochloric acid, Mercury, Brick and Water.
A ______ substance is made up of only one kind of particle.
Complete the Analogy.
Made up of one kind of particles: Pure substance:: Chemical combination of two or more element: ______.
Give any two characters of a pure substance.
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
The allotropic form of a non-metal is a good conductor of electricity. Name the allotrope.
Iron filings and sulphur were mixed together and divided into two parts, ‘A’ and ‘B’. Part ‘A’ was heated strongly while Part ‘B’ was not heated. Dilute hydrochloric acid was added to both Parts and evolution of gas was seen in both cases. How will you identify the gases that evolved?
A substance must absorb ______ so that it can melt.
How are pure substances classified?
Name some substances that are sublime.
