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2 C 20094
What are epimers ? Give example.
Draw the structure of phenyl alanine and lysine.
Write atest to distinguish proteins.
How vitamins are classified ?
Why LDL is termed as bad lipid ?
Draw the structure of lecithin.
Why adenine pair up with thymine and guanine with cytosine ?
Give any two uses of lemon grass oil.
What are nucleotides ?
Draw the molecular orbitals of butadiene.

(10 x 2 = 20 marks)
Section C (Paragraph)

Answer any five questions.

Each question carries 6 marks.
How will you distinguish ethanol and dimethyl ether by 'H NMR spectra ?
Describe Killiani-Fischer synthesis.
How glucose reacts with phenyl hydrazine ?
Explain Solid Phase Peptide Synthesis. (SPPS)
Write the differences between DNA and RNA.
Show that the thermal electrocyclic ring closure of butadiene is con rotatory.
Draw the structure and write uses of citral and menthol.

Explain replication.

(5 x 6 = 30 marks)

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