Which one of the following is used as a test for aliphatic primary amines?
Tollen's test
Fehling's test
lsocyanide test
Azo dye test
When methanamine is treated with benzoyl chloride, the major product is
N-phenylethanamide
N-methylbenzamide
benzanilide
acetophenone
In DNA, the consecutive deoxynucleotides are connected by
phosphodiester linkage
phosphomonoester linkage
phosphotriester linkage
amide linkage
Which one of the following monomers form biodegradable polymer?
Urea and formaldehyde
Ethylene glycol and terephthalic acid
3-hydroxybutanoic and 3-hydroxypentanoic acid
Phenol and caproic acid
C.
3-hydroxybutanoic and 3-hydroxypentanoic acid
3-hydroxybutanoic acid and 3-hydroxypentanoic acid are the monomer unit of PHBV (poly-β-hydroxy butyrate-co-β-hydroxyvalerate). It is biodegradable polymers and can be degraded by microorganisms within a suitable period.
Match the following:
Drug | Class |
A. Dimetapp | p. Antidepressant |
B. Furacine | q. Analgesic |
C. Pheneizine | r. Antiseptic |
D. Aspirin | s. Antifertility |
E. Norethindrone | t. Antihistamine |
A - q; B - s; C - t; D - r; E - p
A - r; B - t; C - q; D - p; E - s
A - t; B - s; C - q; D - p; E - r
A - t; B - r; C - p; D - q; E - s
The enzyme that converts glucose into ethyl alcohol and carbon dioxide is
zymase
invertase
maltase
urease
The chelating ligand used to remove excess of copper and iron in chelate therapy is
D-penicillamine
oxalate ion
EDTA
ethylenediamine