Molecular Orbital Treatment of Some Homonuclear Diatomic Molecules ( H2 & He2 ): Hydrogen (H2) molecule: Hydrogen atom has electronic configuration 1s1. 1s atomic orbitals of two hydrogen atoms combine to […]
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Valence Bond (VB) Theory: This theory has following postulates: Covalent bonds are formed by overlapping of atomic orbitals. Electron density is high in the overlapped area and is thus responsible for […]
Class 11 Chemistry Chemical Bonding mcqs A molecule with the smallest angle b/w two adjacent bonds, is: 1.CO2 2.CH4 3.NH3 4.H2O Answer ) H2O Brief Explanation : H2O molecule with the smallest […]
Do you know !! What is resonance theory? Resonance Theory: According to resonance theory some molecules are represented by two or more than two structures and the actual structure is weighed average […]
Do you know !! Theories of Covalent Bonds: There are three theories of covalent bonds. These are (i) VSEPRT, Resonance Theory, (ii) VBT and (iii) MOT. Valence Shell Electron Pair Repulsion […]
Electronic Configuration: The distribution and arrangement of electrons in various shells, sub-shells and orbitals is called electronic configuration. Electronic configuration follows three rules. Auf Bau Principle: It states: “Electrons occupy shells in […]
Shapes of Orbitals: Shapes of orbitals are obtained by probability contours. If we plot probability of finding electrons versus distance from nucleus, we see that probability is zero at the nucleus it […]
Do you Know !! What is Quantum Number ? These are certain numbers which are used to locate electron in an atom or in other words these are address of electron. They […]
Schrodinger Wave Equation: In 1926, Erwin Schrodinger, a Austrian Physicist, developed an equation, which is given below and is called Schrodinger equation. Where E = total energy of electrons V = […]
Heisenberg’s Uncertainty Principle: In 1927, Warner Heisenberg proposed the uncertainty principle. It states: “It is impossible to state both position as well as momentum of electrons accurately and simultaneously” To determine the […]