Chemistry MCQs

Page No. 97

Which has strongest bonding in the solid state ?


aHydrogen Chloride (HCI)


bChlorine (Cl2)


cXenon(Xe)


dSodium Chloride (NaCI)



All the enthalpy changes are________________?


aNegative


bPositive


cMay or may not be A or B


dNone



The pressure during the molar heat of fusion is kept________________?


a0 atmosphere


b1 atmosphere


c2 atmosphere


d10 atmosphere


View Answer 1 atmosphere

Isomorphic substances have _______________?


aSame physical and chemical properties


bSame physical and different chemical properties


cDifferent physical and same chemical properties


dDifferent physical and chemical properties



Bucky balls is an allotropic from of__________________?


aSulphur


bCarbon


cSilica


dTin


View Answer Carbon

The phenomenon in which a compound exists in two or more crystalline forms is called ________________?


aIsomorphism


bPolymorphism


cAnisotropy


dAllotropy


View Answer Polymorphism

Boiling points of hydrocarbons increase with the increase in number of carbon atoms. It is mainly due to_________________?


aMore strength of H-bonding


bMore strength of London forces


cLess polarizability


dAll of the above



Amorphous substances posses_________________?


aNo definite geometry


bNo definite heat of fusion


cNo sharp melting points


dAll of the above



A solid may be made up of_________________?


aAtoms


bIons


cMolecules


dA, B, and C


View Answer A, B, and C

If we provide very high amount of heat to a liquid its boiling point will__________________?


aincrease


bremains constant


cdecrease


dthere will be no boiling


View Answer remains constant

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