Atomic StructureElectronic Configuration and Valency1696Choose the best answerA neutral atom has the configuration: 1s² 2s² 2p⁶ 3s¹ Its usual valency is:A−2B+2C−1D+1 Like 0 Discuss 0Share
UHS MDCAT 2023 ChemistryUHS MDCAT 2023 Past Paper#Alkali Metals#S- and P-Block Elements1697Choose the best answerAll alkali metals react with chlorine gas to form white metal chlorides salt. The metal chlorides salt formed is: (UHS MDCAT 2023)AInsolubleBSoluble in water to give neutral solution of pH 7CSoluble in water to give acidic solution of pH 1DSoluble in water to give alkaline solution of pH 14 Like 1 Discuss 0Share
SolidsLattice Energy1698Choose the best answerEnergy is released when:AAn ionic solid is completely meltedBGaseous atoms are producedCGaseous ions combine to form an ionic crystalDAn ionic lattice is completely separated Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Wave Mechanical Model1699Choose the best answerWho developed the wave-mechanical description of an electron in three-dimensional space?ANiels BohrBLouis de BroglieCErwin SchrodingerDMax Planck Like 0 Discuss 0Share
UHS MDCAT 2024 Chemistry#Chemical Kinetics#Rate Law1700Choose the best answerIf a reaction rate does not change with concentration then it is:A3rd orderB2nd orderC1st orderDZero order Like 1 Discuss 0Share