Alcohols and PhenolsPreparation of Alcohols by Reduction of Esters1456Choose the best answerReduction of an ester with LiAlH₄ followed by hydrolysis generally produces:AOnly an aldehydeBTwo alcohol productsCOnly a ketoneDA carboxylic acid Like 0 Discuss 0Share
Periodic TableIonization Energy Trend1457Choose the best answerThe first ionization energy generally decreases down a group mainly because of an increase in: (1) Atomic radius (2) Nuclear charge (3) Electron affinity (4) Number of shielding electronsA(1) and (2)B(1) and (4)C(2) and (3)D(3) and (4) Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryTetravalency of Carbon1458Choose the best answerTetravalency of carbon means that:ACarbon usually forms four covalent bonds.BCarbon normally exists as C⁴⁺ in organic compounds.CCarbon cannot bond with oxygen.DCarbon forms only single bonds. Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Molecules1459Choose the best answerWhich sample contains the largest number of molecules?A3.6 g H₂OB2.8 g COC4.8 g C₂H₅OHD5.4 g N₂O₅ Like 0 Discuss 0Share
UHS MDCAT 2025 Chemistryuhs mdcat chemistry 2025#Crystal Lattice#Solids1460Choose the best answerIn a unit cell of a crystal lattice the angle β is between faces:Aa and bBb and cCc and aDnot specified Like 0 Discuss 0Share