Chemistry MCQs

Page No. 96

Rising of a wetting liquid in a capillary tube is due to__________________?


aSurface tension


bCohesive forces


cAdhesive forces


dViscosity


View Answer Adhesive forces

The boiling point increases down the zero group element due to_________________?


aIon dipole forces


bLondon forces


cHydrogen bonding


dDipole dipole forces


View Answer London forces

When water freezes at 0°C its density decreases due to_______________?


aChange of bond angles


bCubic structure of ice


cEmpty space present in the structure of ice


dChange of bond length



The conversion of vapours back into their liquid state is called__________________?


acrystallization


bevaporation


cvaporization


dcondensation


View Answer condensation

Steam causes more sever burn than the boiling water because it possesses _________________?


aLatent heat of fusion


bLatent heat of vaporization


cLatent heat of sublimation


dAll of the above



The density of water may be__________________?


aEqual to that of ice


bGreater than that of ice


cLess than that of ice


dAll are possible



Which one is a conductor but is not malleable ?


aIron


bGraphite


cSilver


dPlatinum


View Answer Graphite

Which one of the following does not show hydrogen bonding?


aWater


bEthyl alcohol


cPhenol


dDiethyl ether


View Answer Diethyl ether

Which one is false for evaporation ?


aSurface phenomenon


bContinuous


cExothermic


dCause cooling


View Answer Exothermic

When the atoms of third layer are arranged in such a way that they directly lie above the atoms of first layer then this arrangement is called_________________?


aABAB (hexagonal)


bABCABC (Cubic)


cOrthor hombic


dRhombohedral


View Answer ABAB (hexagonal)

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