CSIR (Council of Scientific & Industrial Research) Chemical Sciences: Questions 216 - 219 of 427

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 427 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 300.00 or

Question number: 216

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

Appeared in Year: 2012

MCQ▾

Question

Using Hacker molecular orbital approximation, the two roots of secular equation of ethene are: (June)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 217

» Inorganic Chemistry » Nuclear Chemistry » Fission and Fusion

Appeared in Year: 2011

MCQ▾

Question

For nuclear reactions: -

(Given masses: and )

Correct Statement is: - (Dec)

Choices

Choice (4) Response

a.

1 and 2 are both spontaneous fission process.

b.

2 is spontaneous fission but 1 is not

c.

1 is spontaneous but 2 is not

d.

1 and 2 are not spontaneous fission process.

Question number: 218

» Physical Chemistry » Chemical Kinetics » Collision and Transition State Theories of Rate Constants

Appeared in Year: 2013

MCQ▾

Question

A radioactive initially decays at the rate of 34, 500 disintegrations/minute, but decay rate falls to 21, 500 disintegration/minute after 75 minutes. The for is, (June)

Choices

Choice (4) Response

a.

220 mins

b.

90 mins

c.

180 mins

d.

110 mins

Question number: 219

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

Appeared in Year: 2011

MCQ▾

Question

A hydrogenic orbital with radial function of the form and part as exp corresponds to: - (June)

Choices

Choice (4) Response

a.

b.

c.

d.

f Page
Sign In