Chemistry MCQs

Page No. 90

Fluted filter paper is used to__________________?


aFilter hot solution


bAvoid premature crystallization


cIncrease the rate of filtration


dDecrease the area



Which of the following technique is used for the separation of insoluble particles from liquids ?


aFiltration


bCrystallization


cSolvent extraction


dChromatography


View Answer Filtration

Which of the following way in used for classification of chromatography ?


aShape


bPhase


cMechanism


dAll


View Answer All

Neutrons moving with an energy of 1.2 MeV are called_______________?


aFast neutrons


bSlow neutrons


cModerate neutrons


dAll are possible


View Answer Fast neutrons

When 6d orbital is complete the entering electron goes into_________________?


a7f


b7s


c7p


d7d


View Answer 7p

Centrifugal forces are balanced in atom by__________________?


aAttractive forces


bRepulsive forces


cElectrons


dNeutrons


View Answer Attractive forces

_______________ can expel proteons from paraffins ?


aElectron


bProton


cNeutron


dNone of above has such capability


View Answer Neutron

Quantum number which tells the energy of electron is________________?


an


b1


cm


ds


View Answer n

Wavelength of electron was verified by_________________?


aMoseley


bDavisson and Germer


cEinstein


dRoentgen


View Answer Davisson and Germer

Sommerfelds modification in Bohrs model is_______________?


aOrbit is cylindrical


bOrbit is elliptical


cOrbit is longitudinal


dOrbit is asymmetrical


View Answer Orbit is elliptical

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