Chemistry assignment of class 9th
Climate is based on topic matter physical nature of matter, diffusion, state of matter
1. Define matter. Name the various classes into which all matter can be classe
2. What is meant by the term substance?
3. What is meant by the particulate nature of matter?
4. How small are the particles of matter?
5. State the phenomenon of diffusion.
6. Name the solid substance which is less denser than its liquid at its melting point.
7. What is the effect of temperature on the dissolution/diffusion of a coloured solid in water?
8. The boiling point of water is higher than that of petroleum. In which of the two, the intermolecular forces are stronger?
9. What factors govern the states of matter?
Assignment 2
1. A substance X has definite volume, no fixed shape and is almost incompressible. What is the physical state of the substance X?
2. Arrange the following in the increasing order of intermolecular force of attraction water, common salt, Air.
3. A substance has neither a fixed shape nor a fixed volume. Which physical state is described by these properties?
4. In which state of matter, the force of cohesion is minimum? Solid, Liquid, Gaseous.
5. What are porous solids? Give one example.
6. Which of the following physical states has more kinetic energy? Ice, Water, Water vapour.
Climate is based on topic matter physical nature of matter, diffusion, state of matter
1. Define matter. Name the various classes into which all matter can be classe
2. What is meant by the term substance?
3. What is meant by the particulate nature of matter?
4. How small are the particles of matter?
5. State the phenomenon of diffusion.
6. Name the solid substance which is less denser than its liquid at its melting point.
7. What is the effect of temperature on the dissolution/diffusion of a coloured solid in water?
8. The boiling point of water is higher than that of petroleum. In which of the two, the intermolecular forces are stronger?
9. What factors govern the states of matter?
Assignment 2
1. A substance X has definite volume, no fixed shape and is almost incompressible. What is the physical state of the substance X?
2. Arrange the following in the increasing order of intermolecular force of attraction water, common salt, Air.
3. A substance has neither a fixed shape nor a fixed volume. Which physical state is described by these properties?
4. In which state of matter, the force of cohesion is minimum? Solid, Liquid, Gaseous.
5. What are porous solids? Give one example.
6. Which of the following physical states has more kinetic energy? Ice, Water, Water vapour.
