BECE Science 2024 Paper

Concept:Volume of a liquid is measured using a graduated glass or plastic container.Explanation:The unit $\mathrm{cm}^3$ is a unit of volume.The student needs to measure a fixed volume of sodium hydroxide solution, which is a liquid.A measuring cylinder is designed to measure liquid volumes accurately in $\mathrm{cm}^3$.A measuring tape measures length, not volume.A hygrometer measures humidity.A hydrometer measures the density or specific gravity of a liquid.So, the correct instrument for measuring $20\,\mathrm{cm}^3$ of a liquid is a measuring cylinder.Answer:C. Measuring cylinder