A sound wave travels at a speed of 339 ms–1. If its wavelength is 1.5 cm, what is the frequency of the wave? Will it be audible?
Which separation techniques will you apply for the separation of the following?
Sodium chloride from its solution in water.
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.
Mock Test Series
