PART-1
1.Define limiting reagent? Give example.
2.State Hunds rule of maximum multiplicity? Write E.C. of
Ca.
3.write Aufbau principle ? arrange in increasing order of
energy :
2s,3d,4f,2p
4.which of the following orbital does not exist ? give
reason-:
2s,2d,3f,4f
5.write Bohrs postulate ? mention any two limitations.
6.Write Rutherfords atomic models drawbacks.
7.write any two
A.
Heisenburgs uncertainty principle.
B.Paulis exclusion principle.
C.De Broglie hypothesis
8.define quantum no. ? write significance.
9. which q.n gives shape & orientation of orbital.
10.distinguish orbit & orbital.
11.what is degenerated orbital ? give example.
12.write E.C. of Cu & Cr ? justify your answer.
13state modern periodic law ? write gen E.C of F-block &
P-block elements.
14.what is shielding effect ?(screening)
15why Cations are smaller than parent atoms ?
16. Define isoelectron species? Give example.
17.find the iso electronic species
O2- , F- Na+
,
18.Define Ionisation Enthalpy ? how it is changed across a
period ?
19.Define diagonal relationship ? Write the diagonal
relationship between Mg & Li ?
20.Explain 1st ionization enthalpy is less than 2nd
I.E. ?
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