ECAT Chemistry MCQ's Test For Full Book With Answers

ECAT Chemistry MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 Absolute temperature of a gas is proportional to Rotational kinetic energy Translational kinetic energy Vibrational kinetic energy Potential energy
2 If absolute temperature of a gas is doubled and the pressure is reduced to one half, the volume of the gas will be Remain unchanged Doubled Reduced Increased four times
3 The density of a gas is directly proportional to pressure, inversely proportional to temperature and directly proportional to Viscosity Molar mass Momentum All of above
4 The density of a gas is directly and volume at constant temperature for a gas is Isobaric Isothermal Isotherm None of above
5 The graph between pressure and volume at constant temperature for a gas is Isobaric Isothermal Isotherm None of above
6 The ratio of volume to temperature on Kelvin scale is constant according to Charle's law Newton's law Coulomb's law Boyle's law
7 The product of pressure and volume remains constant when temperature and quantity of gas is zero variable kept constant None of these
8 A graph between P and PV at constant temperature and number of mole is parallel to y axis z axis x axis pressure axis
9 A graph between P and 1/V at constant temperature and number moles of a gas meets the y-axis x-axis origin none of above
10 Boyle's law does not fall even Temperature is extremely high Pressure is extremely high Mixture of gases is taken all of above
11 According to Boyle's law. which parameters give a straight line parallel to x-axis, when we plot a graph between V and T P and V P and 1/V P and PV
12 For a gas obeying Boyle's law if pressure is doubled, the volume becomes Remains constant Double One half None of above
13 In Boyle's law which of the following pair is variable Temperature and quantity of a gas Pressure and Volume Volume and quantity of a gas Pressure and quantity of a gas
14 In Boyle's law which of the following pair remains constant Temperature and quality of a gas Pressure and quality of a gas Temperature and pressure Temperature and quantity of a gas
15 The relationships between volume of a given amount of gas and the prevailing conditions of temperature and pressure are Charle's Law Graham's Law Boyle's Law Gas Laws
16 The intramolecular forces in gases are Weak Normal Very weak Strong
17 Liquids are less common than Solids Plasmas Gases All of above
18 Gases show uniform behaviour towards their Internal conditions External conditions Internal and external conditions None of above
19 Cooling happens under the Joule Thomson Effect due to sudden Contraction Absorption Expansion All of above
20 In Solids, the temperature is the measure of Rotational kinetic energies Translational kinetic energies Vibrational kinetic energies None of above
21 In gases and liquids, temperature is the measure of Average translational kinetic energies of molecules Average vibrational kinetic energies of molecules Average rotational kinetic energies of molecules None of above
22 The rate of diffusion of a gas in Inversely proportional to its density Inversely proportional to square root of its molecular mass Directly proportional to molecular mass Directly proportional to its density
23 Gases of air, always remain in random motion and do not settle due to Difference in molecular masses of air gases Difference in partial pressure of gas molecules Unequal number of different gas molecules Elastic collision of gas molecules
24 Gases exert pressure on walls of container because the gas molecules Obey gas laws Have definite volume Collide with the walls of container Collide with each other
25 All gases can be compressed by Keeping constant pressure Decreasing pressure Increasing pressure None of above
26 The movement of gas molecules from a region of high pressure to vacuum is called Evaportation Effusion Conduction Diffusion
27 Which Statement about gases is not correct? They spread throughout the vessel Pressure is due to collision There are larger spaces between the molecules Molecules are arranged regularly
28 Which of the following is the simplest form of matter? Gaseous state Liquid State Solid State All of above
29 Fluted filter paper is used to: Decrease rate of filtration Increase rate of filtration Maintain rate of filtration None of above
30 Direct conversion of solid intro vapours is called: Crystallization Sublimation Obligation Vapourization
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