ऋ /2014

2:

The wave function W associated with the motion of electron in a hydrogen atom can be
expressed conveniently as a function of :

(A) Cartesian co-ordinates x, £ (ए) Spherical Polar co-ordinates r, 0, ¢
(C) Cylindrical co-ordinates r, ¢, z (0) None of these

The major weakness of the Molecular Mechanics method is :

(A) It ignores electrons.

(ஐ) The calculations are relatively slow.

(C) Gives poor results for IR மூலம

(ಐ) Cannot be applied to molecules with more than 100 atoms.

The ROHF method is used for which of the following molecules ?
‏مت بی‎ ഭു യ (ಲ) O, (triplet) (D) BF3

Which of the following is a semi empirical quantum chemical molecular orbital method ?
(8) ‏و‎ (B) RHF/STO-3G* (C) AMBER യു ക

The number of atomic orbital(s) that hydrogen atom has is :
(ಸಿ) Infinite (0) Zero (ಲ) One (0) Two

Which of the following statements is false about Valence Bond Theory 7
(A) Ttis a quantum mechanical approach

(B) The total wave function or trial wave function is the product of the individual bond
eigen functions

)© It makes no attempt to predict the shape of the molecules
(ए) वष्ट individuality of the atoms are maintained

In the Lyman series of the atomic hydrogen spectrum, the allowed transition is :
(ಗಿ) 2೫26 (ए) 25,20 (ಲ) 2525 (D) None of the above

In the Hiickel theory, the secular determinant has :
(ക) Resonance integrals as the diagonal elements
18) Coulomb integrals as the diagonal elements
(C) B as the diagonal elements

(D) Exchange integrals as the diagonal elements

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