## Preparation of Haloalkanes

Haloalkanes are known as the replacement of hydrogen atom(s) in aliphatic hydrocarbon by the halogen atom (s) result in the formation of alkyl halide.Methods of preparation of haloalkanes are given below. Preparation of haloalkanes from alkanes Halogen reacts with alkanes in the presence of sunlight or high temperature to give a mixture of mono or … Read morePreparation of Haloalkanes

## Coulomb’s law Problems and Applications

Coulomb’s Law Coulomb’s law enables us to calculate the electrostatic force between any two point charges. It holds for distances ranging from 10-15 to 1018 m. The force of interaction between any two point charges is directly proportional to the product of the electrical charges and inversely proportional to the square of the distance between them. … Read moreCoulomb’s law Problems and Applications

## Electrical Charges and its Properties

Electrical Charges (q) Electrical charges are the intrinsic property of the elementary particles of matter which give rise to an electric force between various objects.It is a scalar quantity. Minimum possible charge is $\pm\ 1.6 \times 10^{-19} C$ Electrical Charges on an, Electron is $-\ 1.6 \times 10^{-19} C$ Proton is $+\ 1.6 \times 10^{-19} C$  \$\alpha\ … Read moreElectrical Charges and its Properties

## Concentration of Solution Problems and Definition

Concentration of solution The concentration of solution is the amount of solute present in a unit volume of solution. Mass Percentage It is the mass of the component per 100g of the solution $=\frac{\text{Mass of component}}{\text{Total mass of solution}} \times 100$ Volume Percentage It is the volume of the component per 100 parts by the … Read moreConcentration of Solution Problems and Definition

## Locomotion and Movement

In locomotion and movement : Movement refers to a change in the body position. It is a fundamental characteristic of living beings. Locomotion is the movement of body parts that leads to change place. The reduction in force of contraction of muscle after prolonged stimulation is called muscle fatigue. This happens due to the accumulation of lactic … Read moreLocomotion and Movement