Household MCQs with Answers

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Rayon is the synthetic fiber known as artificial silk because it mimics the appearance, texture, and sheen of natural silk.

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Soft soaps are made using Potassium (specifically potassium hydroxide), which gives them their characteristic soft or liquid consistency.

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<strong>Bleach</strong> (sodium hypochlorite solution) is widely used as a disinfectant to kill germs and prevent the spread of illness and disease.

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Surfactants reduce the surface tension of water by weakening the cohesive forces between water molecules at the surface.

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The fluoride concentration is 400 ppm, calculated as (mass of fluoride / total mass) × 10⁶ = (0.2 g / 500 g) × 10⁶.

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Teflon is a polymer of the monomer tetrafluoroethylene.

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Ammonia is the most alkaline substance among the given options, with a pH typically around 11–12.

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Super glue (cyanoacrylate) is the adhesive commonly used to bond broken pieces of jewelry due to its fast bonding and strong adhesion on small, non-porous surfaces.

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HACCP is a standardized, formalized system of preventive food control.

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Minor additives are added to the glass mixture during manufacturing to add color.