TS EAMCET States of Matter — practice questions
82 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice TS EAMCET States of Matter in the app →The ideal gas equation of state is:Boyle's law for a fixed amount of gas at constant temperature states that:Charles's law for a fixed amount of gas at constant pressure states that:The compressibility factor $Z$ of a gas is defined as $Z = \dfrac{PV}{nRT}$. For an ideal gas, $Z$ equals:Above what temperature can a gas not be liquefied by pressure alone, no matter how much pressure is applied?According to VSEPR theory, the shape of a molecule is determined byThe hybridisation of carbon in methane (CH₄) isWhich molecule is non-polar despite having polar bonds?The bond order of the oxygen molecule O₂ (by molecular orbital theory) isA coordinate (dative) bond differs from a normal covalent bond in thatWhich species has sp hybridisation on the central atom?As bond order increases, bond lengthAn ionic bond forms byThe shape of NH₃ is pyramidal rather than planar becauseWhich has the highest dipole moment?Among the following, which is paramagnetic?Formal charge on an atom = Which intermolecular force operates between atoms of a noble gas?Who proposed the idea of momentary dipoles behind dispersion forces in 1930?Which forces are present between all atoms and molecules?London forces between molecules become stronger when the molecule hasWhy does neopentane boil lower (282.7 K) than n-pentane (309.4 K)?A hydrogen bond formed within the same molecule is calledWhy does H2O boil at 100 C while H2S boils at -60 C?The unit in which dipole moment is expressed is theTypical dipole-dipole interaction energy is of the order ofWhich has the highest boiling point: propane, dimethyl ether, CH3Cl or CH3CN?Which force is important when NaCl dissolves in water?Why is Mg2+ hydrated more strongly than Na+?Which pair shows a dipole-induced dipole interaction?How easily an electron cloud is distorted by an electric field is calledAir contains about what percentage of N2 by volume?How many elements exist as gases under normal conditions?For fixed gas amount at constant temperature, Boyle's law relates P to V asA gas at 2 atm occupies 6 L. At constant temperature, what is its pressure at 3 L?Robert Boyle reported his pressure-volume work in which year?At constant pressure, the volume of a fixed gas amount is directly proportional to itsA gas of 2 L at 27 C is heated to 327 C at constant pressure. Its new volume isThe value of absolute zero on the Celsius scale isThe kelvin unit of temperature is named in honour ofWhat is 25 C on the absolute temperature scale?At 1 bar and 273.15 K, one mole of an ideal gas occupies aboutThe molar volume of any gas at old STP (1 atm, 273.15 K) isThe standard temperature and pressure used for the 22.71 L value areAn ideal gas strictly obeys which three laws?The ideal gas equation PV = nRT is also called theThe value of R in Pa m3 K-1 mol-1 isOne atmosphere equals how many kilopascals?One calorie is equal to how many joules?How many moles of ideal gas fill 24.63 L at 1 atm and 300 K? (R = 0.0821)N2 at 1.5 atm, 9.0 L and 300 K is compressed to 3.0 L and heated to 600 K. Final pressure?In which year did John Dalton formulate the law of partial pressure?Oxygen at 0.4 atm and nitrogen at 0.6 atm are mixed in one vessel. Total pressure?The partial pressure of a gas in a mixture is the pressure it would exertDalton's law of partial pressure applies to gases thatIn kinetic theory, collisions between gas molecules are taken to beAccording to kinetic theory, average kinetic energy of gas molecules is proportional toKinetic theory treats the volume of gas particles asWhich kinetic theory idea explains a gas filling its container?In kinetic theory, gas pressure arises fromReal gases deviate most from ideal behaviour atFor one mole of an ideal gas, the ratio PV/RT equalsA compressibility factor Z greater than 1 means the gas isThe compressibility factor Z is the ratio of the actual molar volume to theWhich type of gas can never be liquefied, even at very low temperature?The temperature above which a gas cannot be liquefied by pressure alone is itsAbove its critical temperature, a substance existsThe molar volume of a substance at its critical temperature is calledWhy can O2 and N2 not be liquefied at room temperature by pressure?Water's boiling point is highest in which setting?A liquid boils when its vapour pressure becomes equal to theVapour pressure in a closed vessel is reached when theThe vapour pressure of water is also known asLiquids with weak intermolecular forces generally haveOne torr is equal toVapour pressure of a liquid is measured with aAs temperature of a liquid rises, its surface tensionSurface tension is defined as force acting per unitSoaps clean oily dirt mainly by lowering theViscosity of a liquid is itsThe SI unit of the coefficient of viscosity isIn the CGS system, viscosity is measured in