Classic Classic Quiz Science class 9th by Adityaa Adityaa 4 played - 2 yrs ago QUIZ 10 QUESTIONS expert 1 Si unit of acceleration- M/sM/s squareKm/s squareKm/hour square 2 When water at 0°C freezes to form ice at the same temperature of 0°C, then it : Absorbs some heatReleases some heatNeither absorbs nor releases heatAbsorbs exactly 3.34 x 105J/kg of heat 3 Which of the following causes the temperature of a substance to remain constant while it is undergoing a change in its state? Latent heatLattice energyLoss of heatNone of these 4 What is the name of the metal which exists in liquid state at room temperature? SodiumPotassiumMercuryBromine 5 The continuous zig-zag movement of colloidal particles in a dispersion medium is called OscillationDispersionTyndall effectBrownian movement 6 Which of the following property does not describe a compound? It is a pure substance.It is mixed in any proportion by massIt cannot be separated into constituents by physical meansIt is composed of two or more elements 7 According to the definition of pure substance, which of the following is a pure substance? IceAll of theseMercuryIron 8 Which of the following non-metal is a good conductor of electricity? GraphiteSiliconGoldAluminium 9 Which of the following statement is not true regarding the characteristic of matter? Particles of a matter are randomly moving in all directions.Kinetic energy of the particles of all maters remains the same at a particular temperatureKinetic energy of the particles of all maters remains the same at a particular temperature.Particles of matter diffuse into each other on their own. 10 Heterogeneous mixture in which the solute particles do not dissolve and remain suspended throughout the solvent and the solute particles can be seen with the naked eye is known as : SuspensionsColloidal solutionSuper saturated solutionSublimation A mistake in this Quiz ? Contact the author Commentaires
