CSIR Chemical Sciences: Questions 224 - 228 of 329

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Question number: 224

» Physical Chemistry » Chemical Thermodynamics » Emperature and Pressure Dependence of Thermodynamic Quantities

Appeared in Year: 2011

MCQ▾

Question

The unperturbed energy levels of a system are 0=0,1=2,2=4 . Second order correction to the energy for ground state in pressure of perturbation V for which V10=2,V20=4,V12=6 has been found to be—- (June)

Choices

Choice (4) Response

a.

8

b.

6

c.

0

d.

6

Question number: 225

» Physical Chemistry » Molecular Spectroscopy » Basic Principles of Magnetic Resonance

Appeared in Year: 2011

MCQ▾

Question

In 19FNMR spectrum of PF5, the number of signal and multiplicity at room temperature are: - (Dec)

Choices

Choice (4) Response

a.

One, doublet

b.

Two, singlet

c.

One, singlet

d.

Two, doublet

Question number: 226

» Physical Chemistry » Chemical Bonding in Diatomics » Huckel Theory for Conjugated Pi Electron Systems

Appeared in Year: 2011

MCQ▾

Question

A constant of motion is defined by the equation (June)

Choices

Choice (4) Response

a.

[H,A]=0

b.

<[H,A]>=0

c.

A=f[H]

d.

A+=A

Question number: 227

» Physical Chemistry » Chemical Kinetics » Complex Reactions

Appeared in Year: 2016

MCQ▾

Question

32P radio isotope, used in leukemia therapy has t1214.26days.What%of32P remains after 35 days? (CSRD MHRD Sample Paper Question)

Choices

Choice (4) Response

a.

30%

b.

18.3 %

c.

8%

d.

81.7%

Question number: 228

» Inorganic Chemistry » Nuclear Chemistry » Nuclear Reactions

Appeared in Year: 2013

MCQ▾

Question

Carbonyl resonance in 13CNMRof[(η5Cp)Rh(CO)]3 ( 109RhI=12is100% ) shows triplet at 65 means presence of (June)

Choices

Choice (4) Response

a.

η5Cp

b.

Terminal CO

c.

μ3CO

d.

μ2CO

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