Parkinson's disease is linked to abnormaties in the levels of dopamine in the body. The structure of dopamine is
C.
Dopamine is produced in several areas of the brain. If the amount of dopamine increases in the brain, the patent may be affected with Parkinson's disease.
The IUPAC name of dopamine is 2-(3,4-dihydroxyphenyl) ethylamine and its structure is as follows :
Consider the following compounds :
1. Sulphur dioxide
2. Hydrogen peroxide
3. Ozone
Among these compounds identify those that can act as bleaching agent :
1 and 3
2 and 3
1 and 2
1, 2 and 3
Match the following:
List - I | List - II |
A. Oxyhaemoglobin | i. Analgesic |
B. Aspirin | ii. Oxygen carrier |
C. Haemoglobin | iii. Photosynthesis |
D. Chlorophyll |
iv. Oil of winter green v. Fe2+ paramagentic |
The correct match is
A - v; B - i; C - ii; D - iii
A - iv; B - ii; C - i; D - iii
A - iii; B - i; C - ii; D - iv
A - v; B - ii; C - iii; D - i
The reagent used in the preparation of aspirin from salicylic acid is
SOCl2/ pyridine
CH3COOH / HCl
(CH2CO)2O/ Conc. H2SO4
CH3Cl/ AlCl3
A micelle formed during the cleansing action by soap is
a discrete particle of soap
aggregated particles of soap and dirt
a discrete particle of dust
an aggregated particle of dust and water
Initial setting of cement is mainly due to :
hydration and gel formation
dehydration and gel formation
hydration and hydrolysis
dehydration and dehydrolysis
Barbituric acid and its derivatives are well known as:
tranquilizers
antiseptics
analgesics
antipyretics