GasesCombined Gas Law141Choose the best answerIf the pressure of a gas is halved and its absolute temperature is doubled, its volume becomes:AFour timesBTwo timesCUnchangedDEight times Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryPolarimetry142Choose the best answerWhich instrument is used to measure optical activity?ASpectrometerBPolarimeterCColorimeterDRefractometer Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model143Choose the best answerAccording to Bohr’s model, what happens to an electron while it remains in an allowed stationary orbit?AContinuously radiates energyBGradually loses energyCNeither absorbs nor emits energyDFalls into the nucleus Like 0 Discuss 0Share
UHS MDCAT 2024 Chemistry#Chemical Kinetics#Rate Law144Choose the best answerIf a reaction rate does not change with concentration then it is:A3rd orderB2nd orderC1st orderDZero order Like 1 Discuss 0Share
Atomic StructureIsoelectronic Species145Choose the best answerWhich pair is isoelectronic?ACO₂ and NO₂BNO₂⁻ and CO₂CCN⁻ and CODSO₂ and CO₂ Like 0 Discuss 0Share