- Total number of questions: 168
- 36 questions carry one mark each
- 132 questions carry two marks each
- Negative marking: 1/4 of the marks allotted to the question
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Exam Details
Life Sciences (XL) 2007
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Questions
168
Duration
180 mins
Package
Life Sciences (XL) - Previous Year Papers
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168questions
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168
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168questions
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168
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Instructions
Life Sciences (XL) 2007 – Instructions
Syllabus
Full Syllabus
Sample questions from this paper
Questions are selected across the paper subjects wherever the paper contains that variety.
2007 · Unclassified
Life Sciences (XL) 2007
Q.1 – Q.6 carry one mark each.
On the basis of VSEPR theory, the molecule which has a linear structure is
2007 · Unclassified
Life Sciences (XL) 2007
The geometries of [NiCl4]2− and [PdCl4]2− respectively are
2007 · Unclassified
Life Sciences (XL) 2007
The ionization energy of hydrogen atom in ground state is 13.6 eV. The ionization energy of Li2 in ground state would be
2007 · Unclassified
Life Sciences (XL) 2007
The half-life of 14C is 5730 years. An old sample of wood contains 25% of 14C as would be found in a current living tree. The age of the sample of wood would be
2007 · Unclassified
Life Sciences (XL) 2007
The product 'P' formed in the following reaction is
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HgSO4 + H2SO4 → P
A
B
C
D
2007 · Unclassified
Life Sciences (XL) 2007
The order of reactivity of the following aldehydes with a nucleophile is
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