States of Matter – Chemistry | NEET Online Mock Test Leave a Comment / Blog / By admin Online Mock Test Description Mock TestStates of MatterExamNEET Medical TestSubjectChemistry Marks100No. Questions50 QuestionsTime50 Minutes 1 Sorry! Time up States of Matter - NEET (Chemistry) Best of Luck! 1 / 50 Calculate the pressure to be increased in order to decrease the volume of a gas by 5% at a constant temperature 5% 5.26% 10% 4.26% 2 / 50 Find the incorrect one from the following graph: 1 2 3 4 3 / 50 A vessel contains O2 and H2 in 28 : 13 molar ratio at 100 atm pressure. Then calculate ratio of their rate of diffusion. 1 : 2 13 : 28 7 : 13 13 : 7 4 / 50 A vessel contains equal amount of oxygen and carbon monoxide at 10 atm. Calculate the partial pressure of O2 under similar condition 0.27 atm 2.7 atm 4.67 atm 5 atm 5 / 50 Calculate the number of atoms present in 11.2 L NH3 at 273oC and 2 atm6.022 x 10232 x 6.022 × 10234 x 6.022 x 10231/2 x 6.022 x 1023 1 2 3 4 6 / 50 Select the correct statement from the following according to the kinetic molecular theory of gases Collisions are perfectly elastic The average kinetic energy depends on temperature and mass There is very weak force of attraction between gas molecules Both (1) and (2) 7 / 50 The average speed of an ideal gas molecule of 27°C is 1.75 ms-1. Calculate average speed at 927°C0.6 ms-11.75 ms-13.5 ms-17.0 ms-1 1 2 3 4 8 / 50 Vander Waal equation for He is: Where a,b are Vander Waal's constant 1 2 3 4 9 / 50 Under which of the following set of conditions is a real gas expected to deviate from ideal behaviour to the maximum extend ? High T, low P Low T, High P Low T, low P High T, High P 10 / 50 The critical temperature of O2 is less than H20 because the H2O molecule have Fewer electron than O₂ V-shape structure Sigma bond Dipole moment 11 / 50 The correct order of temperature of a real gas is :a) Inversion temperatureb) Critical temperaturec) Inversion temperaturea > b >cc > a > ba > c > bb > a > c 1 2 3 4 12 / 50 For an ideal gas at constant P and fixed number of moles, which of the following graph is correct ? 1 2 3 4 13 / 50 At 1 atm and 273 K the density of gas whose molecular weight is 45, is- 44.8 g/L 11.4 g/L 2 g/L 4 g/L 14 / 50 A 4: 1 molar mixture of He and CH4 is contained in a vessel at 20 bar pressure. Due to a hole in thevessel, the gas mixture leaks out. Find the composition of the mixture effusing out initially 4 : 1 1 : 4 8 : 1 1 : 1 15 / 50 Total kinetic energy of 8 gm He gas at 27°C is 1.8 kJ 18 kCal 1800 Cal 1800 J 16 / 50 Find the temperature at which most probable speed of SO2 molecules have the same value of root mean square speed of O2 molecule at 300 K 150 K 600 K 750 K 900 K 17 / 50 1 2 3 4 18 / 50 The avarage Kinetic Energy of four moles of N2 gas at 127oC is (R = 2 cal mole-1K-1) 4400 cal 4800 cal 3200 cal 1800 cal 19 / 50 The correct order of value of 'a' for different gases isAr < CO < N2CH4 < NH3 < SO2NH3 < Cl2 < HCISO2 < CO2 < H2 1 2 3 4 20 / 50 Temperature at the foot of a mountain is 30°C and pressure is 760 mm of µg whereas at the top of the mountain, these are 0°C and 710 mm. Compare the densities of the air at the foot and at the top of the mountain 5.34/1 9.25/5 0.96/1 2.4/9 21 / 50 127ml of a certain gas diffuses at the same time as 100ml of chlorine under same condition. Calculate the Molecular mass of the gas 22 amu 44 amu 64 amu 48 amu 22 / 50 2.8g of N2 gas is kept in 1-litre flask at 0°C Calculate the pressure exerted by the gas 2.24 atm 4.48 atm 6.92 atm 3.12 atm 23 / 50 A graph is plotted pressure (P) versus the Temperature (T) of a gas at a given volume (V). What is the correct relationship among V1, V2, V3 & V4? 1 2 3 4 24 / 50 The correct order of liquefaction of gases areNH3 > CO2 > HCI > SO2CO2 > NH3 > SO2 > HCIHCI > CO2 > NH3 > SO2SO2 > NH3 > HCI > CO2 1 2 3 4 25 / 50 If real gas molecules are assumed to have no volume, then at room temperature and pressure vander Waal's gas equation can be written as 1 2 3 4 26 / 50 Correct relationship between T₁, T₂ and T3 isT1 > T₂> T3T₂ > T3 > T₁T3 > T₂ > T₁T₁ > T3 > T₂ 1 2 3 4 27 / 50 For which of the following gas critical temperature would be the highestNH3H2N2CH4 1 2 3 4 28 / 50 Density of N2 at 27°C temperature and 1atm pressure is 1.14 g/L 1.05 g/L 2.18 g/L 3.2 g/L 29 / 50 The average kinetic energy of an ideal gas per molecule at 25°C will be3.8×10-20J6.17×10-21J7.46×10-19J8.32×10-21J 1 2 3 4 30 / 50 If the temperature changes from 16°C to 127°C, the relative percentage change in rms velocity would be 17.65% 7.86% 15.72% 20.43% 31 / 50 Which of the following gas can be easily liquified?NH3CO2N2O2 1 2 3 4 32 / 50 Which of the following has the maximum surface tension? Water(liquid) Ethanol(liquid) Oxygen(liquid) Helium(liquid) 33 / 50 At Boyle's temperature for long range of pressure compressibility factor 'Z' for a real gas isZ = 0Z > 1Z < 1Z = 1 1 2 3 4 34 / 50 At what temperature is the kinetic energy of a gas molecule half of its value at 327°C 13.5°C -123°C 27°C 150°C 35 / 50 The most probable velocity of O2 at 27°C is 1 2 3 4 36 / 50 Which of the following shows positive deviation from ideal gas behaviour at 273 K?N2CO2CH4He 1 2 3 4 37 / 50 Which of the following gases will have the highest rate of diffusion at STP?SO2O3Cl2C3H6 1 2 3 4 38 / 50 Which of the following order of pressure is correct?P1 = P2 = P3P1 > P2 > P3P1 < P2 < P3P1 > P2 < P3 1 2 3 4 39 / 50 The density of oxygen is 1.4 gm/l at STP. The density of oxygen at 47°C and 800 torr is 1.28 gm/l 2.25 gm/l 0.25 gm/l 5.25 gm/l 40 / 50 The ratio of the root mean square velocity of He at 50K to that of SO2 at 800K is 1 : 2 2 : 1 1 : 1 1 : 4 41 / 50 The correct order of van der Wall constant (b) isN2 > O2 > He > Cl2Cl2 > N2 > O2 > HeO2 > N2 > Cl2 > HeHe > O2 > N2 > Cl2 1 2 3 4 42 / 50 Correct order of surface tension of given compound isEthanol > glycerol > glycolGlycerol > ethanol > glycolGlycol > glycerol > ethanolGlycerol > glycol > ethanol 1 2 3 4 43 / 50 2 moles of an ideal gas (monoatomic) is subjected to isothermal compression upto half of its initial volume and then allowed to undergo isothermal expansion upto 2/3rd of its original volume. The value of △U (change in internal energy) in the entire process is -2J -3J -6J 0 44 / 50 Which of the following relation is/are correct for the critical constantsPc = a/27bTc = 8a/27RbVc = 3bBoth (2) and (3) 1 2 3 4 45 / 50 Vapour pressure of water is dependent on Pressure Volume of container Surface area Temperature 46 / 50 The Correct unit of surface tension isNm-1Nm-2Nsm-2All of these 1 2 3 4 47 / 50 Pressure correction term in the van der Waal's equation for 1 mole of a gas is(a/V2)(b/V2)(b/V)(a/V) 1 2 3 4 48 / 50 The ratio of the r.m.s. velocity of H2 at 50 K to that of O2 at 800 K is 4 : 1 2 : 1 1 : 1 1 : 3 49 / 50 If equal masses of methane and hydrogen are mixed in a container at 25°C, then the fraction of the total pressure exerted by hydrogen is 16/17 1/9 1/2 8/9 50 / 50 The molecular weight of a gas that diffuses twice as rapidly as the gas with molecular weight 32 is 16 8 1/8 64 Your score isThe average score is 0% 0% Restart quiz NEXT CHAPTER: Thermodynamics