CSIR Chemical Sciences: Questions 287 - 291 of 427

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Question number: 287

» Physical Chemistry » Principles of Quantum Mechanics » Orbital and Spin Angular Momenta

Appeared in Year: 2013

MCQ▾

Question

Wave function φ of a certain is linear combination,

φ=14φ1+34φ2

Where φ1andE2 are energy eigen functions with eigen values E1 and E2. What is the probability that system will be observed to be E1 ? (June)

Choices

Choice (4) Response

a.

14

b.

34

c.

316

d.

14

Question number: 288

» Physical Chemistry » Principles of Quantum Mechanics » Harmonic Oscillator and the Hydrogen Atom

Appeared in Year: 2013

MCQ▾

Question

The most Probable value of ‘r’ for an electron in 1s orbital of hydrogen atom is (Dec)

Choices

Choice (4) Response

a.

a2

b.

2a0

c.

a0

d.

3a2

Question number: 289

» Inorganic Chemistry » Transition Elements and Coordination Compounds » Reaction Mechanisms

Appeared in Year: 2013

MCQ▾

Question

Reaction of [PtCl4]2 with 2 equivalents of NH3 gives________ (June)

Choices

Choice (4) Response

a.

trans[Pt(NH3)2Cl2]

b.

cis[Pt(NH)3Cl4]2

c.

cis[Pt(NH3)2Cl2]

d.

cis and trans [Pt(NH3)2Cl2]

Question number: 290

» Inorganic Chemistry » Transition Elements and Coordination Compounds » Structure

Appeared in Year: 2013

MCQ▾

Question

Intense band at 15000cm1 in UV-visible spectrum of [Bu4N]2Re2Cl8 is due to________ (June CSIR)

Choices

Choice (4) Response

a.

ππ*

b.

πδ*

c.

δδ*

d.

δπ*

Question number: 291

» Organic Chemistry » Principles of Stereochemistry » Configurational and Conformational Isomerism in Acyclic and Cyclic Compounds

Appeared in Year: 2012

MCQ▾

Question

The number of possible isomers of [Ru(PPh3)2(acac)2] (acac = acetylacetonate) is: - (Dec CSIR)

Choices

Choice (4) Response

a.

2

b.

4

c.

5

d.

3

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