MCQ Matter And Its States SET 4ALL MCQ For Matter And Its States 1. The states of matter having no definite shape but definite volume:Gas Solid LiquidNone of the AboveQuestion 1 of 152. With regard to the gaseous state of matter which of the following statements are correct?Complete disorder of molecules Random motion of moleculesBoth of these None of theseQuestion 2 of 153. Which of the following property of water can be used to explain the spherical the shape of rain droplets?viscosity pressuresurface tensioncritical phenomena Question 3 of 154. A person living in Shimla observed that cooking food without using pressure cooker takes more time. The reason for this observation is that at high altitude:pressure increases pressure decreases temperature increasestemperature decreasesQuestion 4 of 155. How does the surface tension of a liquid vary with increase in temperature?Remains same Increases No regular pattern is followedDecreasesQuestion 5 of 156. The value of gas constant per degree per mole is approximately1 Cal 2 cal4 cal3 cal Question 6 of 157. The rate of diffusion of methane at a given temperature is twice of a gas X. The molecular weight of X is64 32816Question 7 of 158. What is SI unit of viscosity coefficient (η)?Pascal km–2sNs m–2N m–2Question 8 of 159. Which of the following gases will have the highest rate of diffusion?O2NH3CO2N2Question 9 of 1510. When you heat a sample of gas, what happens to the particles that make up the gas?The particles move faster. The particles get smallerThe particles become more denseThe particles break apartQuestion 10 of 1511. If helium and methane are allowed to diffuse out of the container under the similar conditions of temperature and pressure, then the ratio of rate of diffusion of helium to methane is:2 : 1 1 : 24 : 13 : 5 Question 11 of 1512. The theory which explains that gases consist of molecules, which are in rapid option is known as:Daltons Atomic Theory Kinetic Molecular TheoryRutherfords Atomic TheoryBohrs TheoryQuestion 12 of 1513. The value of universal gas constant R depends onTemperature of Gas Number of Moles of Gas Volume of GasUnits of Volume, Temperature and PressureQuestion 13 of 1514. Which of the following changes decrease the vapour pressure of water kept in a sealed vessel?Decreasing the quantity of water Decreasing the volume of the vessel to one-halfAdding salt to the waterDecreasing the temperature of the waterQuestion 14 of 1515. Find the molecular mass of a gas that takes three times more time to effuse as compared to He with the same volume9 u 27 u 36 u64 uQuestion 15 of 15 Loading...
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