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Exam Details

Life Sciences (XL) 2008

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Questions 112
Duration 180 mins
Package Life Sciences (XL) - Previous Year Papers

Paper pattern & analysis

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Showing all 112 questions in this paper.

Subject distribution

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Topic distribution

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Subtopic distribution

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Difficulty distribution

Easy 111 99.1%
Hard 1 0.9%

Question type distribution

Multiple Choices 111 99.1%
Fill in the blanks 1 0.9%

Instructions

Life Sciences (XL) 2008 – Instructions
  • Total number of questions: 112
  • 0 questions carry one mark each
  • 112 questions carry two marks each
  • Negative marking: 1/4 of the marks allotted to the question
  • Use of calculator is allowed
  • This is a proctored examination
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Syllabus

Full Syllabus

Sample questions from this paper

Questions are selected across the paper subjects wherever the paper contains that variety.

1
2008 · Unclassified
Life Sciences (XL) 2008

Which of the following will NOT conduct electricity?

A
Solid metallic Na
B
Solid NaCl
C
Aqueous NaCl
D
Fused NaCl
2
2008 · Unclassified
Life Sciences (XL) 2008

The region in which the following spectral lines are observed are

A
P – UV, Q – UV/Vis, R – IR
B
P – UV/Vis, Q – UV, R – IR
C
P – IR, Q – UV, R – Vis/IR
D
P – UV, Q – IR, R – UV/Vis
3
2008 · Unclassified
Life Sciences (XL) 2008

The pH of a 10−8 molar hydrochloric acid solution is

A
exactly 8
B
between 7 and 8
C
exactly 7
D
between 6 and 7
4
2008 · Unclassified
Life Sciences (XL) 2008

The plot of concentration of A against time is a straight line with negative slope for the reaction: A → products. The order of the reaction is

A
–1
B
0
C
1
D
2
5
2008 · Unclassified
Life Sciences (XL) 2008

Among the following four amines, which one is least basic in aqueous solution?

A
CH₃NH₂
B
(CH₃)₂NH
C
(CH₃)₃N
D
CH₃NHCH₂CH₃
6
2008 · Unclassified
Life Sciences (XL) 2008

Which of the following acids is used for the preparation of cyclohexene from cyclohexanol?

A
Conc. HNO₃
B
48% HBr
C
85% H₃PO₄
D
(COOH)₂