WorksheetsPharmaceutical Chemistry
Total questions: 10
Worksheet time: 10mins
Which one of the following is not a reagent for Triphenyl imidazole synthesis?
Benzil
Benzaldehyde
Ammonium acetate
Ethyl acetoacetate
Reaction for Imidazole synthesis is based on-
Dakin Reaction
Radziszweski Synthesis
Paal-Knorr Synthesis
Metal hydride reduction
which one is the recrystallization solvent for triphenyl imidazole-
Distilled water
Boiling Water
Ethanol
Isopropyl alcohol
Benzyl chloride converted into corresponding alcohol by using-
Sodium bicarbonate
Sodium carbonate
Sodium di-hydrogen phosphate
Di-sodium hydrogen phosphate
Solution of Sodium sulphite is used during the synthesis of bezoic acid is-
50%
40%
20%
none of these
-NO2 is an example of-
strong electron withdrawing group
weak electron withdrawing group
Meta directing group
both 1 & 3
Crystals of m-di-nitro benzene is obtained as-
Dark crystals
Amorphous
Mild yellow crystals
colorless crystals
Removal of excess toluene from Benzoic acid is done by using-
Chemical separation
Physical separation
HPLC
Column Chromatography
Chemical name of triphenyl imidazole is-
2,4,5-Triphenyl-1H-imidazole
2,4,5-triphenyl-2H-imidazole
3,4,5-triphenyl-1H-imidazole
None of these
oxidizing agent used for the synthesis of Benzoic acid-
KMnO4
H2O2
K2Cr2O7
KNO3
