CSIR Chemical Sciences: Questions 59 - 64 of 427

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Question number: 59

» Inorganic Chemistry » Organometallic Compounds » Bonding and Structure and Reactivity

Appeared in Year: 2012

MCQ▾

Question

In Equation , cluster the number of bridging Equation and Co-ordination of Mo are (Dec)

Choices

Choice (4) Response

a.

2 and 8

b.

2 and 6

c.

1 and 8

d.

1 and 6

Question number: 60

» Inorganic Chemistry » Organometallic Compounds » Bonding and Structure and Reactivity

Appeared in Year: 2012

MCQ▾

Question

Correct statement regarding Equation specie for closo

Choices

Choice (4) Response

a.

Always has + 2 charge

b.

It is more reactive than nido, arachno and hypo-boranes.

c.

It is neutral specie

d.

Always has -2 charge

Question number: 61

» Inorganic Chemistry » Organometallic Compounds » Bonding and Structure and Reactivity

Appeared in Year: 2013

MCQ▾

Question

The oxidation state of molybdenum in Equation

Choices

Choice (4) Response

a.

+1

b.

+2

c.

-1

d.

0

Question number: 62

» Inorganic Chemistry » Structure and Bonding in Homo-and Heteronuclear Molecules (VSEPR Theory)

Appeared in Year: 2011

MCQ▾

Question

Molecule with highest number of lone pair and has a linear shape on VSEPR theory is: - (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 63

» Inorganic Chemistry » Organometallic Compounds » Bonding and Structure and Reactivity

Appeared in Year: 2013

MCQ▾

Question

In metal-olefin infraction, extent of increase in metal Equation olefin Equation -back-donation would

Choices

Choice (4) Response

a.

Lead to decrease in Equation bond length

b.

Change in formal oxidation state of metal.

c.

Change in hybridization of carbon Equation

d.

Increase with presence of electron donating group on carbon.

Question number: 64

» Inorganic Chemistry » Structure and Bonding in Homo-and Heteronuclear Molecules (VSEPR Theory)

Appeared in Year: 2011

Match List-Ⅰ List-Ⅱ▾

Question

Match list I (Compounds) with list II (Structures), and select the correct answer using the codes gives below: - (Dec)
List-Ⅰ (Compounds) List-Ⅱ (Structures)

(A)

Equation

(i)

Square planar

(B)

Equation

(ii)

Tetrahedral

(C)

Equation

(iii)

Distorted tetrahedral

Choices

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

a.

  • (i)
  • (iii)
  • (ii)

b.

  • (ii)
  • (i)
  • (iii)

c.

  • (i)
  • (ii)
  • (iii)

d.

  • (ii)
  • (iii)
  • (i)

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