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CBSE class 12 ncert chemistry download pdf: Free Chemistry chapter-2 'Electrochemistry'fast track revesion notes.               Electrochemistry 1.Cells are the devices in which interconversion of electrical energy and chemical energy takes place. It is of two types: (i) Electrochemical cell (ii) Electrolytic cell 2. An electrochemical cell is a device in which chemical energy of the redox reaction is converted into electrical energy. e.g. Daniell cell 3. While writing a cell, the anode is written on the left and the cathode on the right. A vertical line separates the metal from the metal ion (electrolyte solution) and a double vertical line indicates a salt-bridge which is written between the two half-cells (two electrolytes). The Daniell cell is represented as: Zn(s)|Zn²+(aq)||Cu ²+(aq)|Cu(s)  The electrode potential under the conditions of unit concentration at 25°C of all the species in the half-cell is called the standard electrode potenti...

CBSE class 12 Ncert chemistry download pdf: Free Chemistry chapter-1 'Solution' fast track revesion notes.     Chapter - 2     Solution 1 .A solution is a homogeneous mixture of two or more substances whose composition can be varied within certain limits. 2.Expression of concentration Composition of a solution can be described by expressing its concentration. Several ways to describe the concentration of the solution quantitatively are as follows : ● Percentage by mass (w/w)= Mass of the component in the solution / Total mass of the solution x 100 ● Percentage by volume (V/V) ( Volume of the component/ Total volume of   solution )×100 ● Mass by volume percentage (w/v) is the mass of solute dissolved in 100 mL of the solution. ●   Parts per million (ppm) = (Number of parts of the component÷ Total number of parts of all components of the solution  )×10⁶                         ...

CBSE Sample Papers for Class 12 – Chemistry Chemistry Solved Sample paper–2 Latest CBSE sample papers for class 12 chemistry in pdf as according to CBSE sample with solutions. The solved sample papers had been made as consistent with modern day elegance 12 chemistry syllabus, blueprints of 2021. Students have to down load and exercise to get higher marks in tests. Download cbse guess papers for class 12 chemistry along with marking scheme, by working towards these papers you may understand the sample of questions so as to be requested within the assessments and put together therefore. The magnificence 12 chemistry pattern papers cowl all critical topics and help you to score better marks. College students need to do the cautioned papers in exam situations at domestic a good way to assist them to get familiarized with the way to write in tests. The mock papers for class 12 chemistry have been drafted primarily based at the modern-day shape launched. Download pdf of sample paper of Chemi...

CBSE Practice Sample Papers for Class 12 – Chemistry Chemistry Solved Sample paper–1 Modern CBSE sample papers for class 12 chemistry in pdf as according to CBSE sample with solutions. The solved sample papers had been made as consistent with modern day elegance 12 chemistry syllabus, blueprints of 2021. Students have to down load and exercise to get higher marks in tests. Download cbse guess papers for class 12 chemistry along with marking scheme, by working towards these papers you may understand the sample of questions so as to be requested within the assessments and put together therefore. The magnificence 12 chemistry pattern papers cowl all critical topics and help you to score better marks. College students need to do the cautioned papers in exam situations at domestic a good way to assist them to get familiarized with the way to write in tests. The mock papers for class 12 chemistry have been drafted primarily based at the modern-day shape launched. Download pdf of sample paper...

CBSE class 12 Ncert chemistry download pdf: Free Chemistry chapter-1 'Solid state' fast track revesion notes. S olid State 1. Existence of matter as solid, liquid or gas depends upon the net effect of intermolecular forces and thermal energy. Solid state have definite mass. volume and shape. They are incompressible, rigid and intermolecular forces are strong. 2. Solids can be classified into two categories, viz. crystalline and amorphous depending upon the arrangement of constituent particles. 3. Crystalline solids (or true solids) have long range order of arrangeme of constituent particles and are anisotropic in nature, i.e. Cu, Ag etc. They melt at a sharp and have characteristic temperature. They have a definite and characteristic enthalpy of fusion. On the basis of nature of intermolecular forces operating in them the crystalline solids have been classified into following four types :     (i) Molecular solids Constituent particles are.       molec...