Chemistry MCQs

Page No. 52

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


aAlkali metals (I-A)


bGroup-14 elements (IV-A)


cGroup-18 elements (VIII-A)


dHalogens (VII-A)



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


aSb < As < S < P < Cl


bCl < Sb < P < As < S


cAs < Cl < P < S < Sb


dSb < As < Cl < S < P


View Answer Sb < As < S < P < Cl

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


aNumber of valence electrons


bAtomic number


cAtomic mass


dAtomic volume



For determining the order of reaction we use__________________?


aRefractometric method


bDilatotometric method


cOptical activity method


dHalf life method


View Answer Half life method

End name of enzyme is___________________?


ayl


base


cone


dal


View Answer ase

Co-enzymes are_________________?


aNon proteineous


bProteineous


cSugars


dLipids


View Answer Non proteineous

A catalyst can not effect__________________?


aProducts


bChemical equilibrium


cReactants


dBoth A and B


View Answer Both A and B

Each catalyst has_________________?


aSpecificity


bSpecial structure


cIts own Ea


dAll of above


View Answer All of above

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


aPromoters


bPoisoning catalysts


cInhibitors


dPro catalysts


View Answer Poisoning catalysts

Greater the conc. Of reactant__________________?


aGreater will be dx/dt


bLesser will be dx/dt


cdx/dt will be moderate


dany of above


View Answer Greater will be dx/dt

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