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

Parkinson's disease is linked to abnormaties in the levels of dopamine in the body. The structure of dopamine is

Match the following:

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

Barbituric acid and its derivatives are well known as:

• tranquilizers

• antiseptics

• analgesics

• antipyretics

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

Identify the non-narcotic analgesic from the following

• diazepam

• ibuprofen

• formalin

• terpineol

Barbituric acid is used as :

• an antipyretic

• an antiseptic

• a tranquilizer

• an analgesic

The reagent used in the preparation of aspirin from salicylic acid is

• SOCl₂/ pyridine

• CH₃COOH / HCl

• (CH₂CO)₂O/ Conc. H₂SO₄

• CH₃Cl/ AlCl₃

Aspirin is:

• acetyl salicylic acid

• 2-methoxy benzoic acid

• acetyl oxalic acid

• ethoxy benzoic add