Practice Test


Q1) _______ proposed the absolute scale of temperature. Show Answer


Q2) The inner central core of earth is in ________ state. Show Answer


Q3) ______ have definite volume but no definite shape Show Answer


Q4) Liquids diffuse slowly as compared to gases because Show Answer


Q5) In general, matter exists in three states: solid, liquid and Show Answer


Q6) ______ have definite volume and definite shape. Show Answer


Q7) _______ are highly compressible. Show Answer


Q8) _______ energy increases the tendency of molecules to escape from the attractive forces of neighbouring molecules. Show Answer


Q9) Liquid and solid states are the result of Show Answer


Q10) ______ melting point indicates strong intermolecular force of attraction. Show Answer


Q11) Non-polar molecules possess_______ dipole moment. Show Answer


Q12) _______ depends on the polarizability of the atom. Show Answer


Q13) The strength of dispersion forces does not increase with increase in Show Answer


Q14) While studying intermolecular interactions, it is assumed that Show Answer


Q15) Dipole-dipole interaction is present between Show Answer


Q16) The force of attraction between an ion and a polar molecule is called Show Answer


Q17) Which of the following forces operates between two atoms? Show Answer


Q18) As the temperature increases, kinetic energy of molecules Show Answer


Q19) ______ interaction takes place between a polar molecule having permanent dipole moment and nonpolar molecule with zero dipole moment. Show Answer


Q20) The non-zero dipole moment of a nonpolar molecule at an instant is called its Show Answer


Q21) Dispersion forces are present in Show Answer


Q22) Dipole moment is defined as the product of charge and the Show Answer


Q23) Which of the following forces is present in HF? Show Answer


Q24) In case of inert gases, the boiling points increase with_____ in atomic mass. Show Answer


Q25) Hydrogen bonding is a special type of _______ interaction Show Answer


Q26) Rate of diffusion = Volume of gas diffused / ________ Show Answer


Q27) Which of the following pressure conversion factors is correct? Show Answer


Q28) The rate of diffusion of a gas depends on Show Answer


Q29) The dimension of pressure are same as that of Show Answer


Q30) The process of inter mixing of two or more gases is called Show Answer


Q31) Atmospheric pressure is measured by_______ Show Answer


Q32) The volume of the gas is the volume of the Show Answer


Q33) Lighter gases diffuse ________ heavier gases. Show Answer


Q34) Boyle's law is applicable when _______is/are constant. Show Answer


Q35) According to Boyle's law, at constant temperature, pressure of gas is directly proportional to its Show Answer


Q36) According to Boyle's law, graph of PV vs P is Show Answer


Q37) Boyle's law can be mathematically stated as Show Answer


Q38) Absolute zero is that temrperature where the volume of the gas must be theoretically Show Answer


Q39) The SI unit of temperature is Show Answer


Q40) Which property is kept constant in verification of Charle's law? Show Answer


Q41) The graph of pressure vs temperature according to Gay Lussac's law is Show Answer


Q42) ________ collected air samples and made several observations on variation of pressure of gas with temperature. Show Answer


Q43) Select one correct statement relating to the ideal gas equation, PV = nRT. Show Answer


Q44) If the volume of 2 moles of an ideal gas at 540 K is 44.8 liter then its pressure will be Show Answer


Q45) Value of universal gas constant 'R' depends upon Show Answer


Q46) For an ideal gas, number of moles per liter in terms of its pressure p, gas constant R and temperature T is Show Answer


Q47) For an ideal gas, it is assumed that Show Answer


Q48) ________ gas is easy to liquefy due to strong intermolecular forces of attraction Show Answer


Q49) In case of hydrogen, molar volume at STP is ________22.414 L. Show Answer


Q50) Van der Waal's equation explains the behaviour of Show Answer


Q51) The temperature at which real gases obey the ideal gas laws over a wide range of pressure is called Show Answer


Q52) The compressibility factor of an ideal gas is Show Answer


Q53) The Ven der Waal's equation reduces itself to the ideal gas equation at Show Answer


Q54) Oxygen cannot be easily liquefied due to Show Answer


Q55) At lower temperature, it is possible to liquefy gases at pressure lower than Show Answer


Q56) In Linde process, cooling takes place by Show Answer


Q57) ________ modified Linde process such that the cooling becomes more efficient Show Answer


Q58) When the vacant space between the molecules of a gas is reduced to almost zero by applying pressure and by reducing temperature, gases turn into Show Answer


Q59) Compared to gaseous state molecules, liquid molecules are held together by intermolecular forces of attraction. Show Answer


Q60) Different liquids flow with different speeds due to Show Answer


Q61) Liquids with low boiling points are called_____ liquids. Show Answer


Q62) Liquids which are less volatile have________ forces of attraction. Show Answer


Q63) At high altitudes, the boiling point of water gets lowered because Show Answer


Q64) Vapour pressure is the pressure exerted by Show Answer


Q65) Vapour pressure depends on Show Answer


Q66) The temperature at which vapour pressure of a liquid is equal to atmospheric pressure is called Show Answer


Q67) Evaporation takes place________ the liquid. Show Answer


Q68) The pressure exerted by the vapours of liquid on the surface of liquid when there is no equilibrium between the liquid and its vapour is called Show Answer


Q69) _______ is the force acting per unit length perpendicular to the line drawn on the surface of liquid. Show Answer


Q70) The falling liquid drop is spherical due to Show Answer


Q71) As temperature increases, surface tension Show Answer


Q72) Which of the following is an application of surface tension? Show Answer


Q73) Surface tension is a characteristic property of Show Answer


Q74) Liquids rise or sink in capillaries due to Show Answer


Q75) ________ increases viscosity of liquids Show Answer


Q76) The earth's crust is in ________ state. Show Answer


Q77) The freezing point of solid and boiling point of liquid are a measure of Show Answer


Q78) _______ gas obeys Boyles and charles law only under limited conditions of low pressure and high temperature. Show Answer


Q79) During evaporation of liquid. Show Answer


Q80) The internal resistance to the flow of the liquid is called its Show Answer


Q81) According to_______ law the pressure of a given mass of a gas inversely proportional to its volume at a constant temperature.
Show Answer


Q82) Avogadro proposed his hypothesis after studying
Show Answer


Q83) " I g-molecule of a gas at N.T.P. occupies a volume of 22.4 L.'' This fact was arrived by using
Show Answer


Q84) Dipole moment is measured in the unit of Show Answer


Q85) Which of the following has the strongest hydrogen bonding? Show Answer


Q86) which of the following has strong intermolecular hydrogen bonding? Show Answer


Q87) The SI unit of pressure is Show Answer


Q88) If P, V, T represent pressure, volume and temperature of the gas, the correct representation of Boyle's law is Show Answer


Q89) For a given mass of a gas at constant temperature, if the volume V becomes three times, then the pressure (p) will become Show Answer


Q90) At constant temperature, the pressure of V ml of a dry gas was increased from 1 atm to 2 atm. The new Volume will be_______ Show Answer


Q91) The volume occupied by 1 mole of a gas when pressure is 1 atm and temperature is 273K is Show Answer


Q92) The compressibility of a gas is less than unity at S.T.P Therefore,molar volume Show Answer


Q93) The compressibility factor, Z= Show Answer


Q94) Which of the following gases can be liquefied? Show Answer


Q95) The unit of viscosity coefficient is Show Answer


Q96) The boiling point of _________ is low due to absence of hydrogen bonding. Show Answer


Q97) SI unit of pressure is _______ Show Answer


Q98) Mathematical statement of Charles' law is Show Answer


Q99) Thomas Andrew measured variation of the volume with pressure of _______ at different constant temperatures. Show Answer


Q100) Mathematical statement of Gay Lussac law is Show Answer


Q101) Mathematical statement of Avogadro's law is Show Answer


Q102) Correct value of gas constant "R" is Show Answer


Q103) For n moles of ideal gas,the equation may be written as Show Answer


Q104) In the equation PV = nRT, which of the following value cannot be equal to R? Show Answer


Q105) The density of Neon will be highest at Show Answer