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CBSE Chemistry Project Report for School Students.
Types of Fabrics :
(i) Animal fibres e.g. Wool & Silk.
(ii) Vegetable Fibres e.g. Cotton & Linen.
(iii) Synthetic Fibres e.g. Nylon & Polyester.
Definition of Adsorption : The phenomenon of attracting
and retaining the molecules of a substance on the surface of a liquid or a solid
resulting in the higher concentration of the molecules on the surface is called
Adsorption.
The substance thus adsorbed on surface is called Adsorbate and the substance
on which it is adsorbed is called Adsorbent.
Causes of Adsorption
Adsorption arises at the surface of solids as a result of presence of
unbalanced forces at the surface. These forces develop either during the
crystallization of solids or by virtue of the presence of unpaired e- in
d-orbital.
In this project, you find the Adsorption, Chemical Adsorption, Physical
Adsorption, Introduction towards Adsorption, Causes of Adsorption,
Classification of Adsorption, Factors on which adsorption depend, Types of
Adsorption, Freundlich's adsorption isotherm, Application of adsorption.
Introduction :
What is Cells : Although every spontaneous redox
reaction can be used as the basis of an electrochemical cell, yet every such
electrochemical cell is not suitable for purpose. This is because of the
following two reasons :-
(i) Electrochemical cells using salt bridges have high internal resistance.
As a result, if we try to draw large current from them, their voltage drops
sharply.
(ii) They lack the compactness and ruggedness for portability.
Types of cells
(a) Primary Cells.
(b) Secondary Cells.
(c) Fuel Cells.
An Alloy is a homogenous mixture of two or more metals or a non-metal.
An alloy of mercury with another metal is called amalgam.
Alloys are usually harder than their components but very often less ductile
and less malleable. Thus the hardness of gold is increased by addition of copper
to it. The melting point of an alloy is always lower than the melting points of
the constituent metals.
In this project report, you find Experiment on Constituents of an alloy,
Preparation of Alloys, Analysis of an alloy, To analyze a sample of brass
qualitatively, bronze qualitatively, duralumin qualitatively, Uses of alloys,
uses with modify chemical reactivity, To increase hardness, To increase
tensile strength, To lower the melting point, To modify the colour and resist
corrosion.