medical entrance questions

Monday, April 14, 2008

Phenol ——————> blue colour ———> red ———> blue
34. Phenol + Phthalicanhydride ——————> phenolpthalein
35. Bakelite : Phenol - formaldehyde thermosetting plastic
36. Phenol with zincdust gives benzene
37. Salicylal dehyde with Zndust gives Benzaldehyde
38. Salicylic acid with Zndust gives Benzoic acid
39. C6H5SO3H ———>C6H5-OH
Benzene sulphonicacid
40. The reagent used for the estimation of phenol is Bromine water
ETHERS
1. Ethers are alkoxyalkanes
2. IUPAC name of CH3CH2OCH3 is methoxyethane
3. IUPAC name of CH3OCH(CH3)2 is 2-methoxy propane
4. Anisole : methoxybenzene
5. Phenetole : Ethoxy benzene
6. CH3CH2I + (CH3)3 CONa ———> CH3CH2O (CH3)3
7. (CH3)3C I + CH3ONa ———> 2- methylpropene
8. Ether has a net dipolemoment — angular
9. CH3OCH3 + HI ———> CH3OH + CH3I
10. CH3OCH3 + HI ———> 2CH3I
11. CH3 OCH2 +HI ———> CH3I + CH3CH2OH

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medical entrance