SECTION 3 (Maximum Marks: 18)
• This section contains SIX questions
• The section contains TWO tables (each having 3 columns and 4 rows)
• Based on each table, there are THREE questions
• Each question has FOUR options
The wave function is a mathematical function whose value depends upon spherical polar coordinates of the electron and characterized by the quantum numbers n, and . Here r is distance from nucleus, is colatitude and is azimuth. In the mathematical functions given in the Table, Z is atomic number and a0 is Bohr radius. | ||
Column 1 | Column 2 | Column 3 |
(I) 1s orbital | (i) | (P) |
(II) 2s orbital | (ii) One radial node | (Q) Probability density at nucleus |
(III) 2pz orbital | (iii) | (R) Probability density is maximum at nucleus |
(IV) orbital | (iv) xy-plane is a nodal plane | (S) Energy needed to excite electron from n=2 state to n=4 state is times the energy needed to excite electron from n=2 state to n = 6 state |
Text Solution
Verified by ExpertsCHECK THE SOLUTION.
(i)
(ii)
Is orbital can not have 
function (angular function).
Therefore D is incorrect.
(iii)
For H-atom:
is 
times of 
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