Chemistry MCQs

Page No. 52

Which of the p-block elements are not representative elements ?


aAlkali metals (I-A)

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bGroup-14 elements (IV-A)

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cGroup-18 elements (VIII-A)

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dHalogens (VII-A)

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Which set of elements is listed in order of increasing ionization energy ?


aSb < As < S < P < Cl

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bCl < Sb < P < As < S

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cAs < Cl < P < S < Sb

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dSb < As < Cl < S < P

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View Answer Sb < As < S < P < Cl

Elements in the same vertical group of the periodic table have same_______________?


aNumber of valence electrons

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bAtomic number

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cAtomic mass

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dAtomic volume

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For determining the order of reaction we use__________________?


aRefractometric method

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bDilatotometric method

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cOptical activity method

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dHalf life method

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View Answer Half life method

End name of enzyme is___________________?


ayl

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base

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cone

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dal

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View Answer ase

Co-enzymes are_________________?


aNon proteineous

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bProteineous

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cSugars

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dLipids

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View Answer Non proteineous

A catalyst can not effect__________________?


aProducts

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bChemical equilibrium

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cReactants

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dBoth A and B

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View Answer Both A and B

Each catalyst has_________________?


aSpecificity

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bSpecial structure

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cIts own Ea

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dAll of above

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View Answer All of above

The substances that reduces the effectiveness of a catalyst are called ___________________?


aPromoters

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bPoisoning catalysts

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cInhibitors

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dPro catalysts

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View Answer Poisoning catalysts

Greater the conc. Of reactant__________________?


aGreater will be dx/dt

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bLesser will be dx/dt

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cdx/dt will be moderate

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dany of above

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View Answer Greater will be dx/dt

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