# Blog

## Chemical Bonding

GASEOUS STATE   Hints to Subjective Problems   LEVEL – I a) PV = b) Apply Apply r ∝ a) Calculate the mass of an electron. Calculate empirical formula first. 2nd contraction is because of O2. a) Calculate total O2 required for the process.   LEVEL – II a) no. of moles are same initially […]

## Atomic Structure

ATOMIC STRUCTURE    Hints for Subjective Problems    LEVEL – I   b) Relate K.E. to λ with the help of an equation which relates λ of a particle to its mass and velocity. Total energy emitted = no. of photons emitted × energy of one photon.   LEVEL – II   c) Energy required […]

## Periodic Properites_final

IIT–JEE Syllabus Mole concept, Calculations involving Oxidation – Reduction, neutralisation and displacement reactions Introduction Stoichiometry deals with the calculation of the quantities of various reactants and products involved in a chemical reaction. The numerals used to balance a chemical equation are known as stoichiometric coefficients. These numerals are essential for solving problems based on chemical […]

## Gaseous State_RP

Density and Molecular weight From the ideal gas equation P = ∴ M = Hence from a knowledge of d/P density under unit pressure molecular weight can be determined. At low pressure below 1 atm d/p has been found to decrease linearly with pressure. Extrapolation of the line to zero pressure P = 0 gives […]

## Gaseous State_Final

IIT–JEE Syllabus Avogadro’ s law; equation of state for an ideal gas; kinetic theory of gases; root mean square velocity and its relation with temperature; average velocity; Gay Lussac’s law.  The Gas Laws 2.1 Boyle’s Law   In 1662, Robert Boyle discovered that there existed a relation between the pressure and the volume of a fixed […]

## Atomic Structure_final

IIT–JEE Syllabus  Atomic structure; Rutherford Model; Spectrum of hydrogen atom; Bohr model; de Broglie relations, Uncertainty principle, Quantum model; Electronic configuration of elements ( upto to atomic number 36); Aufbau principle, Pauli’s exclusion principle and Hund’s rule, shapes of s,p, and d orbitals. Dalton’s Atomic Theory  All the objects around you, this book, your pen […]

## Miscellaneous Objective

1. IIT-JEE Syllabus ALKANE: Physical properties of alkane (melting point, boiling point and density), combustion and halogenation of alkanes. Preparation of alkane by Wurtz coupling and decarboxylation reaction.  ALKENE AND ALKYNE: Structure and physical properties of alkenes and alkynes (boiling point, density, dipole moment), acidity of alkynes. Preparation of alkenes and alkynes by elimination reaction. […]

## Hydrocarbons

1. IIT-JEE Syllabus ALKANE: Physical properties of alkane (melting point, boiling point and density), combustion and halogenation of alkanes. Preparation of alkane by Wurtz coupling and decarboxylation reaction.  ALKENE AND ALKYNE: Structure and physical properties of alkenes and alkynes (boiling point, density, dipole moment), acidity of alkynes. Preparation of alkenes and alkynes by elimination reaction. […]

## Alcohol, Ethers & Phenol

ALCOHOL, ETHERS & PHENOL Solution to Subjective Problems LEVEL – I HC ≡ C – CH2 – OH will be a stronger acid. According to the conjugate acid-base theory, if the conjugate base of an acid is weak, the corresponding acid is stronger. HC ≡ C – CH2 – OH ⎯→ HC ≡ C – […]