Fundamental Principles of Organic ChemistrySources of Aromatic Compounds186Choose the best answerWhich pair is an important source of aromatic compounds?ACoal and natural gasBCoke and coal gasCMarsh gas and water gasDCoal tar and petroleum Like 0 Discuss 0Share
Aldehydes and KetonesAldol Condensation187Choose 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 & Thermodynamics188Choose 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 Synthesis189Choose 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 Rate190Choose 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