Chemistry MCQs

Page No. 107

For which system does the equilibrium constant Kc has unit of (concentration)-1__________________?


aN2+3H2 2NH3

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bH2+I2 2HI

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c2NO2 N2H4

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dPCI5 PCI3+CI2

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View Answer 2NO2 N2H4

Atomic radius can be determined by_________________?


aX – ray diffraction

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bSpectrophotometer

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cOptical microscope

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dElectron microscope

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View Answer X – ray diffraction

Bohrs model is contradicted by__________________?


aPlancks theory

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bDual nature of matter

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cHeisenbergs uncertainty principle

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dAll of these

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Which of the following is pseudo solid_____________________?


aCaF2

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bNaCl

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cGlass

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dDiamond

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View Answer Glass

Plasma is used in_________________?


aFluorescent bulb

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bNeon signs

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cLasers

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dAll of these

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View Answer All of these

A real gas obeying vander waals equation will resemble the ideal gas if_______________________?


aBoth a and b are small

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bBoth a and b are large

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ca is small and b is large

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da is large and b is small

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A safe and more reliable method for drying the crystal is__________________?


aHot air currents

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bfolds of filter paper

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cOven

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dVacuum desiccator

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View Answer Vacuum desiccator

A limiting reactant is one which________________?


ais taken in lesser quantity in grams as compared to other reactants

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bis taken in lesser quantity in volume as compared to other reactants

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cgives the maximum amount of the product which is required

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dgives the minimum amount of the product under consideration

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Which element has same isotopes like palladium___________________?


aNickel

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bCalcium

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cCadmium

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dTin

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View Answer Calcium

The number of atoms in a molecule determines________________?


amacromolecule

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bmacromolecule

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cmolecularity

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datomicity

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View Answer atomicity

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