Mock Test 1 — Chemistry in Everyday Life

Aspirin is a/an:

Penicillin acts by:

Dettol contains:

Soft soap is made from:

Antibiotic from a fungus:

Tincture of iodine is:

Hard water + soap:

Cationic detergent:

Saccharin sweetness factor:

Sodium benzoate is:

Number of C atoms in stearic acid (CH₃(CH₂)₁₆COOH):

Number of fatty acid units per triglyceride molecule:

Sweetness of saccharin relative to sucrose (in hundreds approx, e.g., 5 for 500x):

Assertion (A): Sodium benzoate prevents spoilage in soft drinks. Reason (R): It is converted to benzoic acid in acidic medium, which inhibits the growth of bacteria, yeasts and molds.

Assertion (A): Synthetic detergents work better than soap in hard water. Reason (R): Calcium and magnesium salts of sulfonate (in detergents) are water-soluble, while those of fatty acids (in soap) are insoluble.