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problem1) Answer all the problems:

i) Describe the term nuclear magnetic resource.

ii) prepare the possible isomers of C3H6O2. How would you distinguish them with the help of IR spectroscopy. Give only characteristic absorption bands.

iii) prepare chemical reactions of alcohols where RO-H bond breaks. Describe mechanism.

iv) How would you synthesize:

a) Phenol from salicylic acid.

b) ‘o’ and ‘p’ acetylphenol from phenol.

v) prepare amok on orientation of epoxide ring opening.

problem2) describe the principle of electronic transition in UV-visible spectroscopy. The absorption bands of aqueous oriline are at 230 nm and 280 nm while in Hcl are 230 nm and 254 nm, why?

problem3) What do you mean by stretching and bending vibrations. How many kinds of vibrations occur in organic compounds. Describe?

problem4) Give three methods to synthesize glycerol. prepare down chemical reactions when it reacts with :

(a) Oxalic acid        

(b) Excess of HI     

(c) Gaseous Hcl

(d) HIO4

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  • Category:- Chemistry
  • Reference No.:- M94139

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