Chemistry MCQs

Page No. 79

The partial pressure exerted by the water vapours is called_______________?


aSurface tension

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bAqueous tension

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cVapour pressure

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dHydraulic pressure

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View Answer Aqueous tension

Which one is the right value for R ?


a0.0821 atm dm3k-1mol-

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b0.0821 atm m3k-1mol-

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c2 cal k-1 mol-1

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d8.314 Nm2k-1mol-1

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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

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b1/3dm3

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c1/4dm3

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d2/3dm3

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View Answer 1/3dm3

What is the abundant form of matter on earth ?


aGas

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bLiquid

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cSolid

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dPlasma

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View Answer Solid

In how many forms do matter exists ?


aThree

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bFour

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cFive

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dTwo

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View Answer Four

Which of the following option is incorrect about gases ?


aAll molecules move with same speed

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bAll molecules behave independently

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cPV / RT = n

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dAll gases cannot be liquefied through Linds Method

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


aValue of a

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bMass

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cAtoms

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dBoth B and C

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View Answer Both B and C

Which of the following statements is true about plasma________________?


aIt may be the first state of matter

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bIt is not a phase transition

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cIt is a conductor of electricity

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dAll of the above

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View Answer All of the above

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


aHydrogen bonding

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bVander Waals force

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cForces among the polar molecules

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dIonic bond

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View Answer Vander Waals force

Which of these gases diffuse more quickly than oxygen ?


aH2S

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bNO

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cCl2

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dN2O

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View Answer NO

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