Matter and Its Composition Test - 9

Gas particles are not close to one another and can move easily in any direction. They frequently collide.

Therefore, option c is correct.

The phenomenon of the change of matter from one state to another and back to original state is known as interconversion of the sates of matter. Matter can be changed from one state to another by changing temperature or pressure.

Therefore, option c is correct.

when you keep raisin in water and the raisin gets puffed. Movement of salt-water in animal cell across our cell membrane. Plants take water and mineral from roots with the help of Osmosis. If you are there in a bath tub or in water for long your finger gets pruned.

Therefore, option b is correct.

The three major types of intermolecular interactions are dipole–dipole interactions, London dispersion forces (these two are often referred to collectively as van der Waals forces), and hydrogen bonds.

Therefore, option d is correct.

A substance that flows, changes shape, non-rigid and has no distinctive shape. As the solid materials do not do any of the mentioned above, they are not called fluids.

Therefore, option a is correct.

Centrifugation is the process where a mixture is separated through spinning. It is used to separate skim milk from whole milk, water from your clothes, and blood cells from your blood plasma.

Therefore, option b is correct.

Water, milk, fruit juice, cold drinks are examples of liquid as they do not have fixed shape but they have a definite volume.

Hence the correct option is B.

crystallisation is the (natural or artificial) process by which a solid form, where the atoms or molecules are highly organized into a structure known as a crystal. Some of the ways by which crystals form are precipitating from a solution, freezing, or more rarely deposition directly from a gas.

Therefore, option a is correct.

The kinetic theory of gases describes a gas as a large number of small particles (atoms or molecules), all of which are in constant, random motion. The rapidly moving particles constantly collide with each other, and with the walls of the container.

Therefore, option a is correct.

Three States of Matter

Matter can exist in one of three main states: solid, liquid, or gas.

1.Solid matter is composed of tightly packed particles. ...

2.Liquid matter is made of more loosely packed particles. ...

3.Gaseous matter is composed of particles packed so loosely that it has neither a defined shape nor a defined volume.

Therefore, option b is correct.

An atom is the smallest particle of an element, but an atom is composed of still smaller things: the nucleus and the electrons outside the nucleus. The smallest in size is probably an electron, assuming an electron even has a size.

Therefore, option a is correct.

Perfume is sprayed in one part of a room, yet soon it diffuses so that you can smell it everywhere.

Therefore, option a is correct.

In addition, the first law of thermodynamics does not state that matter cannot be created or destroyed, but rather that the total amount of energy in a closed system cannot be created or destroyed although it can be modified from one form to another.

Therefore, option b is correct.

The space or gap between the molecules of a substance is called intermolecular space. The space or gap between the molecules of matter i.e. In Solids the intermolecular space is negligible, in liquids the intermolecular space is more than that of the solid, and in gases, the intermolecular space is the largest.

Therefore, option (d) is correct

A beaker is a cylindrical container used to store, mix and heat liquids in laboratories. Most are made of glass, but other non-corrosive materials, such as metal and heat-resistant plastic, are also used. Beakers usually have a flat bottoms and a lip around the top.

Therefore, option b is correct.