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Category: science

We are trying our best to compile all the topics related to science up-to secondary level.

Poetry 0

You are lucky!!!

These three words are commonly seen in the marketing industry just to sell their products. Everyone wishes to be lucky and once they see these magical words their psychological balance tilts towards the tempting offers and the whole affair ends up in just selling what they want to sale. I am not saying that we are not lucky, yes we […]

chemistry 0

What dissolves faster in water, salt or sugar?

For this we have to understand that the nature of water is polar. And salt is an ionic compound which is also polar in nature. But sugar is non polar in nature and thus it have a different nature. The dissolution of substances follow a simple rule ,”Like dissolves like.” So salt will dissolve faster than sugar.

chemistry 0

What is Hardy-Schulze rule ?

Hardy-Schulze rule It has two postulates (i) The ions which carry charge opposite to the particles of sol are more effective in causing the coagulation of the solution. (ii) Coagulating power of an electrolyte is directly proportional to the fourth power of the valency of the ions causing coagulation.

chemistry 0

What are Multimolecular and Macromolecular colloids?

Multimolecular colloids are formed when the molecules of dispersed phase aggregate to make a molecule which is having the size between 1nm to 1000nm. The point to note here is , the particles of colloidal solution were of molecular size which joined to make Multimolecular system. Macromolecular colloids are the substances in which the size of particles is 1nm to […]

chemistry 0

What are Colligative properties ?

Actually the word co-ligative itself reveals that (“co” means each other and “ligative” means related) These are the properties which are related to each other. The colligative properties are those properties that depend on the number of solute particles in a solution or a mixture. “These properties don’t depend upon the nature of particles “. Following are the colligative properties:- […]