Chemistry MCQs

Page No. 79

The partial pressure exerted by the water vapours is called_______________?


aSurface tension


bAqueous tension


cVapour pressure


dHydraulic pressure


View Answer Aqueous tension

Which one is the right value for R ?


a0.0821 atm dm3k-1mol-


b0.0821 atm m3k-1mol-


c2 cal k-1 mol-1


d8.314 Nm2k-1mol-1


View Answer 0.0821 atm dm3k-1mol-

For a gas where volume and pressures are 1dm3 and 2 atm respectively what should be its new volume when pressure is increased to 6 atm at constant temperature ?


a1/2dm3


b1/3dm3


c1/4dm3


d2/3dm3


View Answer 1/3dm3

What is the abundant form of matter on earth ?


aGas


bLiquid


cSolid


dPlasma


View Answer Solid

In how many forms do matter exists ?


aThree


bFour


cFive


dTwo


View Answer Four

Which of the following option is incorrect about gases ?


aAll molecules move with same speed


bAll molecules behave independently


cPV / RT = n


dAll gases cannot be liquefied through Linds Method



0.5 mole of nitrogen gas and 0.5 mole of carbon monoxide gas at STP have same_____________?


aValue of a


bMass


cAtoms


dBoth B and C


View Answer Both B and C

Which of the following statements is true about plasma________________?


aIt may be the first state of matter


bIt is not a phase transition


cIt is a conductor of electricity


dAll of the above


View Answer All of the above

The weakest (in strength) of the following intermolecular forces is_______________?


aHydrogen bonding


bVander Waals force


cForces among the polar molecules


dIonic bond


View Answer Vander Waals force

Which of these gases diffuse more quickly than oxygen ?


aH2S


bNO


cCl2


dN2O


View Answer NO

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