Choose the set of true statements from the following –
(1) Vinegar is an aqueous solution of 5% - 8% acetic acid.
(2) Hydrolysis of fat gives glycerol and carboxylic acid.
(3) Teflon is used as solvent.
(4) The chemical formula of washing powder is CaOCl2.

Correct option is A

The correct answer is (a) 1, 2.
Explanation:
· Statement 1: True. Vinegar is indeed an aqueous solution containing 5% - 8% acetic acid, which gives it its characteristic sour taste.
· Statement 2: True. Hydrolysis of fats (triglycerides) produces glycerol and fatty acids, which are carboxylic acids.
· Statement 3: False. Teflon is not used as a solvent; it is a non-stick material commonly used in cookware.
· Statement 4: False. The chemical formula CaOCl2 represents calcium hypochlorite, commonly known as bleaching powder, not washing powder.
Information Booster:
· Vinegar: A commonly used acidic liquid in cooking, primarily composed of water and acetic acid.
· Hydrolysis of Fats: The breakdown of fats by water, usually in the presence of an enzyme, leading to the formation of glycerol and fatty acids.
· Teflon: A brand name for a polymer called polytetrafluoroethylene (PTFE), known for its non-stick properties and resistance to heat and chemicals.
· Calcium Hypochlorite (CaOCl2): Used as a disinfectant and bleaching agent, especially in water treatment and cleaning products.