10.

11.

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. What is the Point Group of Naphthalene ?

A) 02५ B) C2h C) D2h ഉ) 020

. If & molecule is having the following symmetry element IR active vibrational modes

are Raman inactive and vice versa

A) Cn B) Sn C) ov D) i
. Which of the following molecule does not show rotational spectrum ?
A) HCI B) IF ©) 00 0) Hp
~ Number of Vibrational modes in 002 is
A) 4 B) 3 ௦) 2 D) 1
. If Aand 8 are two operators which commute with one another, then the commutator
operator, [A, B] is called operator.
A) Hermitian B) Linear C) Zero D) Laplacian
. For orbitals with | = 0, number of nodes in any radial function is given by
A) ೧೨1೨1 8) ஈ-॥ ©) 1-1 0) n+l
. For reactions having half life time 10-6 or less the method used for the study of fast
reaction
A) Flash photolysis B) Pulse radiolysis
C) Stopped flow method D) Relaxation method

. Mean free path of a gas molecule is inversely proportional to

A) Temperature B) Pressure
C) Velocity D) Boltzmann constant

. At high substrate concentration, enzyme catalysed reaction becomes

order reaction.
A) Zero B) One C) Two D) Three

Half life of a reaction doubles when initial concentration is reduced to half. What is
the order of the reaction ?
A) Zero B) One C) Two D) Three

Number of isomeric derivatives for neutral closo carborane, 28101112 is
A) Two B) Three ©) Five D) Four

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