Aldehydes and KetonesAldol Condensation141Choose the best answerAldol condensation occurs in aldehydes or ketones containing:AOnly a carbonyl groupBAt least one α-hydrogen atomCA phenyl groupDTwo carbonyl groups Like 0 Discuss 0Share
UHS MDCAT 2025 Chemistryuhs mdcat chemistry 2025#First Law of Thermodynamics#Thermochemistry & Thermodynamics142Choose the best answerIf 100 kJ of heat is absorbed by the system and 40 kJ of work is done on the system what is the change of internal energy?A-60 kJB+60 kJC-140 kJD+140 kJ Like 0 Discuss 0Share
MDCAT Chemistry Past Papers 2024Sindh MDCAT Chemistry Past Paper 2024#Fundamental Principles of Organic Chemistry#Wöhler's Synthesis143Choose the best answerUrea was first synthesized by Wohler from an inorganic material named:AAmmonium bicarbonateBAmmonium nitrateCAmmonium oxalateDAmmonium cyanate Like 0 Discuss 0Share
Sindh MDCAT 2020 Chemistry#Chemical Kinetics#Reaction Rate144Choose the best answerThe study of rates of chemical reactions and the factors that affect the rates of chemical reactions is known as: (Sindh MDCAT 2020)AThermodynamicsBStoichiometryCElectrochemistryDChemical kinetics Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryCoal Tar145Choose the best answerCoal tar is an important source of:AAromatic compoundsBAliphatic compounds onlyCCycloalkanes onlyDCarbohydrates Like 0 Discuss 0Share