☰
Is Matter Around Us Pure
What is the nature of the sound waves?
Sound waves are longitudinal waves.
When a sound wave passes through a medium, such as air, the individual particles of the medium move in a direction parallel to the direction of propagation of the disturbance. The particles of the medium thus move to and fro along the direction of propagation of the sound waves.
Sponsor Area
Which separation techniques will you apply for the separation of the following?
Ammonium chloride from a mixture containing sodium chloride and ammonium chloride.
Which separation techniques will you apply for the separation of the following?
Small pieces of metal in the engine oil of a car.
Which separation techniques will you apply for the separation of the following?
Different pigments from an extract of flower petals.
Which separation techniques will you apply for the separation of the following?
Butter from curd.
Write the steps you would use for making tea. Use the words—solution, solvent, solute, dissolve, soluble, insoluble, filtrate and residue.
Sponsor Area
Sponsor Area