Chemistry MCQs

Page No. 51

Many properties of an element and its compounds can be predicted from the position of the element in the periodic table. What property could not be predicted in this way ?


aThe nature of its oxides


bThe charge on its ions


cThe formula of its oxide


dIts number of isotopes



Which one of the following sets consists of all coinage metals ?


aCu Hg Au


bCu Ag Au


cAg Au Hg


dCu Fe Au


View Answer Cu Ag Au

Best position of hydrogen in the periodic table is above I.A Group which is mainly due to_______________?


aBoth are electropositive


bSimilar outer most shell electronic configuration


cBoth form ionic compounds


dAll


View Answer All

Non-metals usually form _________________ oxides?


aAcidic


bAmphoteric


cNeutral


dAll of the above


View Answer Acidic

Inner transition elements are called _________________?


aLanthanides


bActinides


cRare earth metals


dAll


View Answer All

In modern periodic table all the leements are arranged in ascending order of__________________?


aValency


bAtomic mass


cAtomic number


dValence electrons


View Answer Atomic number

Elements with similar chemical properties appear in the_________________?


aSame family


bSame period


cp block elements


dRight upper corner


View Answer Same family

Concept of Triads was introduced by_______________?


aDobereiner


bNewland


cMendeleev


dAl-Razi


View Answer Dobereiner

Periodic table provides a basic framework to study elements with respect to their__________________?


aPhysical properties


bChemical properties


cProperties of their compounds


dAll


View Answer All

Which of the following will not form crystalline structure with opporitely charged ions_________________?


aH+


bH-


cMg2+


dCa2+


View Answer H+

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