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Crack CSIR NET 2021 : Physical Chemistry(18 Sep)

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Question 1

For the complex reaction, the overall rate law is given below:

 (Fast equilibrium)

 (Fast equilibrium)

(slow)

By steady state approximation would be:

Question 2

From the options given below, electron spin resonance is an example of:

Question 3

For an enzyme catalysed reaction, following data is obtained from a Line-weaver-Burk plot:

Slope= 40 s, intercept = 4(m mol dm–3 s–1). Calculate the catalytic efficiency (in dm–3 mol–1 s–1) of the reaction if the initial concentration of enzyme is 2.5 × 10–9 mole dm–3.

Question 4

For excited species, phosphorescence spectrum is due to:

Question 5

Determine the overall rate d[P]/dt for the reaction:

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