Chemistry MCQs

Page No. 97

Which has strongest bonding in the solid state ?


aHydrogen Chloride (HCI)

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bChlorine (Cl2)

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cXenon(Xe)

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dSodium Chloride (NaCI)

✓



All the enthalpy changes are________________?


aNegative

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bPositive

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cMay or may not be A or B

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dNone

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The pressure during the molar heat of fusion is kept________________?


a0 atmosphere

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b1 atmosphere

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c2 atmosphere

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d10 atmosphere

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View Answer 1 atmosphere

Isomorphic substances have _______________?


aSame physical and chemical properties

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bSame physical and different chemical properties

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cDifferent physical and same chemical properties

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dDifferent physical and chemical properties

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Bucky balls is an allotropic from of__________________?


aSulphur

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bCarbon

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cSilica

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dTin

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View Answer Carbon

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


aIsomorphism

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bPolymorphism

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cAnisotropy

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dAllotropy

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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

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bMore strength of London forces

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cLess polarizability

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dAll of the above

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Amorphous substances posses_________________?


aNo definite geometry

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bNo definite heat of fusion

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cNo sharp melting points

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dAll of the above

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A solid may be made up of_________________?


aAtoms

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bIons

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cMolecules

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dA, B, and C

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View Answer A, B, and C

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


aincrease

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bremains constant

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cdecrease

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dthere will be no boiling

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View Answer remains constant

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