Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Hydrogen Spectrum316Choose the best answerIn which regions of the electromagnetic spectrum do hydrogen spectral lines occur?AUltraviolet, visible and infrared regionsBX-ray and γ-ray regions onlyCMicrowave region onlyDRadio-wave region only Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Spectra#Atomic Structure317Choose the best answerWhy can line spectra be used to identify elements?AEach element produces a characteristic set of spectral linesBEvery element produces a continuous spectrumCAll elements produce identical spectraDSpectral lines are independent of atomic structure Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Hydrogen Spectrum318Choose the best answerWhat is produced when an electric discharge passes through molecular hydrogen?AOnly negative ionsBFree atomic hydrogen in excited statesCSolid hydrogen particlesDMulti-electron hydrogen atoms Like 0 Discuss 0Share
MDCAT Chemistry Past Papers 2024Sindh MDCAT Chemistry Past Paper 2024#Atomic Structure#Quantum Numbers319Choose the best answer"In an orbital of an atom, no two electrons can have the same set of four quantum numbers, at least one quantum number must be different." This statement is:AAufbau principleBPauli's exclusion principleCHund's ruleDWissewser rule Like 0 Discuss 0Share
StoichiometryMole#Atomic Structure#Quantum Numbers320Choose the best answerWhat mass is present in 2 gram-atoms of nitrogen? (Atomic mass of N = 14)A14 gB28 gC32 gD56 g Like 0 Discuss 0Share