Name and describe briefly a method which can be helpful in separating a mixture of husk from grains. What is the principle of this method?

When ethyne is burnt in air, it gives a sooty flame. This is due to incomplete combustion caused by limited supply of air. However, if ethyne is burnt with oxygen,...

The husk of a coconut is made up of sclerenchyma tissue.

Hint— Water and alcohol are miscible

(a) The method of separating seeds of paddy from its stalks is called threshing. (b) When milk, cooled after boiling, is poured onto a piece of cloth the cream (malai) is...

(a) Surgical methods / Sterilisation  (b) Males - Vasectomy , a small part of vas deferens is removed or tied up through a small incision on the scrotum  Females - Tubectomy ,...

i. Ethyne is an unsaturated hydrocarbon. On combustion in air, it produces a yellow flame with lots of black smoke. ii. Due to this incomplete combustion, heat produced is low and...

(a) reflection of light 

The process of settling of colloidal particles through induced aggregation by the addition of some suitable electrolyte is known as coagulation. Three methods by which coagulation of lyophobic sols can...

HCl in the solution provides Cl ions. This increases the ionic product in NaCl and so the solid NaCl starts separating out.