in group I and 3rd period? Explain with example
a) Atomic radius b) Nature of oxides c) Electron gain enthalpy
2. Write the important postulates of Bohr's model of Hydrogen atom?
Discuss the importance of this model to explain various series of line
spectra in Hydrogen atom.
3. a) Explain the geometry of H2O and NH3 on the basis of VSEPR theory.
b) Give molecular orbital energy diagram of N2. Calculate its bond
order. Write the magnetic nature of N2 molecule.
4. How are the quantum numbers n,l and ml arrived at? Explain the
significance of these quantum numbers.
20. What is a periodic property? What is the reason for periodicity?
How the following properties vary in a group and in a period? Explain.
a) Nature of oxides b) Electronegativity c) Ionization Enthalpy
5. a) Give four features of molecular orbital theory.
b) Give molecular orbital energy diagram of O2. Calculate its bond order.
Write the magnetic nature of O2 molecule.
6. What is a periodic property?
How do the following properties change in group-I and 3rd period?
Explain with example
a) Atomic radius b) Nature of oxides c) Electron gain enthalpy
7. Write the important postulates of Bohr's model of Hydrogen atom?
Discuss the importance of this model to explain various series of line
spectra in Hydrogen atom.
8. a) Explain the geometry of H2O and NH3 on the basis of VSEPR theory.
b) Give molecular orbital energy diagram of N2. Calculate its bond
order. Write the magnetic nature of N2 molecule.
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