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Difference between lyophilic and lyophobic sols Lyophilic sols Lyophobic sols More affinity between disperse phase and disperse medium. Less affinity between disperse phase and disperse medium. It is reversible in nature. It is irreversible in nature. It is more stable sol. It is less stable sol. It does not show Tyndall effect. It does  show

निस्तापन निस्तापन वह प्रक्रिया है जिसमे किसी अयस्क को हवा की अनुपस्थिति में उसके गलनांक(M.P) से निम्न तापक्रम पर गर्म किया जाता है। गर्म करने पहचात नमी एवं उड़नशील अशुद्धियां दूर हो जाती है तथा धातु का ऑक्साइड प्राप्त हो जाता है। जब कैलसाइट का निस्तापन किया जाता है, तब कैल्सियम ऑक्साइड (CaO)  प्राप्त होता

जारण या भर्जन जारण वह प्रक्रिया है जिसमें किसी अयस्क को हवा की उपस्थिति में उसके गलनांक से निम्न तापक्रम पर गर्म किया जाता है। गर्म करने के पश्चात नमी तथा उड़नशील अशुद्धियाँ दूर हो जाती है तथा धातु का ऑक्साइड  प्राप्त हो जाता है।  या जारण वह प्रक्रिया है जिसमें अयस्क को हवा की

Catalyst It is the substance which change the rate reaction without participated in chemical reaction is called catalyst and this process is called catalysis. Iron, Aluminium , Nickel ….etc are act as catalyst in various chemical reaction. Types of catalyst :- It is of two types Homogeneous catalyst Those catalyst which are in same phase

Molecularity of reaction Number  of reactive molecules collide simultaneously and change into product is called molecularity of reaction. 2NH3→ N2 + 3H2    ,Molecularity=Co-efficient of reactant is 2,  So molecularity of reaction= 2 Order of reaction It is the sum total of Stoichiometry concept in the expression of rate law is called order of reaction

Value of one faraday(F) The amount of charge carried by one mole of electron is called faraday constant. OR It is that amount of electricity which deposited 1g equivalent weight of the material on cathode is called faraday constant. 1 electron has   1.6×10-19 C 6.023×1023 electron has =6.023×1023×1.6×10-19              

Colligative Properties  Properties of solution which depends upon number of particles( Atom, molecules & ions) of the solute which added in it.it does not depends upon the nature or shape of particle. There are following example of colligative properties- (1) Osmotic pressure (π) (2) Elevation of boiling point (ΔTb) (3) Depression of freezing (ΔTf) (4)