CSIR (Council of Scientific & Industrial Research) Chemical Sciences: Questions 73 - 78 of 862

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Question 73

Appeared in Year: 2011

Question MCQ▾

Electronic configuration of Gd is where as that of is (June)

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 74

Appeared in Year: 2011

Question MCQ▾

Ligand system present in vitamin is:- (June)

Choices

Choice (4)Response

a.

Crown ether

b.

Corin

c.

Porphyrin

d.

Phthalocyanine

Edit

Question 75

Appeared in Year: 2011

Question MCQ▾

Number of metal-metal bond in dimers and respectively are_ (Dec)

Choices

Choice (4)Response

a.

Two and three

b.

Two and two

c.

Zero and one

d.

One and two

Edit

Question 76

Appeared in Year: 2013

Question MCQ▾

According to VSEPR theory, the geometry (with lone pair) around the central ion in ions respectively are:- (June)

Choices

Choice (4)Response

a.

Trigonal bipyramidal and Trigonal bipyramidal.

b.

Tetrahedral and tetrahedral.

c.

Tetrahedral and Trigonal bipyramidal.

d.

Tetrahedral and octahedral.

Edit

Question 77

Appeared in Year: 2011

Question MCQ▾

Among the following pairs, those in which both the species have similar structures are:-

  1. (Dec)

Choices

Choice (4)Response

a.

(1) and (3) , only

b.

(1) and (2)

c.

(2) , (3) , and (4) only.

d.

(1) , (2) and (3) only

Edit

Question 78

Appeared in Year: 2012

Question MCQ▾

Structure of a carborane with formula is

Choices

Choice (4)Response

a.

Arachno-borane

b.

Nido-borane

c.

Closo-borane

d.

Conjucto-borane

Edit