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|Time allowed : 3 hours||Maximum Marks : 70|
What is the number of atoms per unit cell in a body centered cubic structure ?
Define osmotic pressure.
For the reaction
the rate law is expressed as
What is the overall order 'of this reaction ?%
Write the IUPAC name of the compound:
Why do nitro compounds have high boiling points in comparison with other compounds of same molecular mass ?
State 'Pauli's exclusion principle'. Explain giving an example how this principle limits the maximum occupancy of an energy level in an atom.
State 'Aufbau principle' and give the order in which the energies of orbitals increase and hence they are filled in that order.
A reaction with
< 0 always has an equilibrium constant value greater than 1. Why ?
Write balanced chemical equations
for the following reactions
(i) Aluminium dissolves in aqueous hydrochloric acid
(ii) Tin reacts with a hot alkali solution
Write the structures of the following species: