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Exam Details

CHEMICAL SCIENCE PART C ( DECEMBER 2018) 2018

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Questions 60
Duration 180 mins
Package CSIR NET & SET - Previous Year Papers

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Difficulty distribution

Medium 37 61.7%
Hard 21 35%
Easy 2 3.3%

Question type distribution

Multiple Choices 60 100%

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Sample questions from this paper

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1
2018 · Unclassified
CHEMICAL SCIENCE PART C ( DECEMBER 2018) 2018
The product for the reaction given below is:
A
B
C
D
2
2018 · Unclassified
CHEMICAL SCIENCE PART C ( DECEMBER 2018) 2018
The 31P{3H} NMR spectrum of cis-[Pt(PEt3)2Cl2] {195Pt(33.8% abundance) I = ½; its other isotopes are NMR inactive; 31P : I = 1/2} is comprised with satellite peaks of a
A
triplet
B
singlet
C
quartet
D
doublet
3
2018 · Unclassified
CHEMICAL SCIENCE PART C ( DECEMBER 2018) 2018
The correct order of intensity of the d-d transitions in the complexes of a 3d transition metal ion M2+ is
A
cis-[M(H2O)4Cl2] > trans-[M(H2O)4Cl2] > [M(H2O)6]2+
B
trans-[M(H2O)4Cl2] >cis-[M(H2O)4Cl2] > [M(H2O)6]2+
C
[M(H2O)6]2+>cis-[M(H2O)4Cl2] ≈ trans-[M(H2O)4Cl2]
D
[M(H2O)6]2+>cis-[M(H2O)4Cl2] > trans-[M(H2O)4Cl2]
4
2018 · Unclassified
CHEMICAL SCIENCE PART C ( DECEMBER 2018) 2018
The reaction of decaborane B10H14 with acetylene in the presence of Et2S gives
A
C2B10H12
B
C2B10H14
C
C2B9H11
D
C2B9H10
5
2018 · Unclassified
CHEMICAL SCIENCE PART C ( DECEMBER 2018) 2018
In compound N3P3F6, the geometry around nitrogen and phosphorus, respectively are
A
Pyramidal and tetrahedral
B
Planar and tetrahedral
C
Planar and trigonal bipyramidal
D
Pyramidal and planar
6
2018 · Unclassified
CHEMICAL SCIENCE PART C ( DECEMBER 2018) 2018
The number of 2c-2e bonds ('x') of a molecule is related to 'N' (valence electrons and 'n' (skeletal atoms) by x = (8n – N)/2. For P4S3 the values of x, N and n, respectively, are
A
7,38,9
B
7,24,9
C
9,38,7
D
9,24,7