CSIR (Council of Scientific & Industrial Research) Chemical Sciences: Questions 43 - 47 of 862

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Question 43

Appeared in Year: 2013

Question MCQ▾

Variation of equilibrium constant (k) of a certain reaction with temperature (T) is

given R = 8.3 J K-1 mol-1 & values of are: (June)

Choices

Choice (4)Response

a.

166 KJ/mol and 24.9 Jk-1mol-1

b.

166 KJ/mol and -24.9 Jk-1mol-1

c.

-166 KJ/mol and 24.9 Jk-1mol-1

d.

-166 KJ/mol and -24.9 Jk-1mol-1

Edit

Question 44

Appeared in Year: 2015

Question MCQ▾

Correct expression for product [ and are number average and weight average molar masses, respectively, of a polymer is] (June)

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 45

Appeared in Year: 2015

Question MCQ▾

For a reaction on a surface,

Reaction One Given on the Surface

________ (1)

Reaction Two Given on the Surface

________ (2)

At low pressure of H2, rate is proportional to (June)

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 46

Appeared in Year: 2016

Question MCQ▾

Olefin hydrogenation of using Wilkinson՚s catalyst initiates with: (MHRD sample paper)

Choices

Choice (4)Response

a.

A phosphine dissociation from

b.

Olefin addition to

c.

A phosphine addition to

d.

Olefin addition to

Edit

Question 47

Appeared in Year: 2013

Question Match List-Ⅰ List-Ⅱ▾

Consider the following catalyst in I and reaction in II (CSIR June)

List-Ⅰ (Catalyst)List-Ⅱ (Reaction)
(A)

(i)

Asymmetric hydrogenation

(B)

Pd

(ii)

Heck coupling

(C)
Asymmetric Hydrogen Transfer
(iii)

Asymmetric hydrogen transfer

(D)

(iv)

Hydro-formylation

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (i)
  • (ii)
  • (iii)
  • (iv)

b.

  • (i)
  • (iii)
  • (iv)
  • (ii)

c.

  • (iv)
  • (i)
  • (iii)
  • (ii)

d.

  • (ii)
  • (iii)
  • (i)
  • (iv)

Edit