Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Isotopes1021Choose the best answerWhich radioactive isotope is commonly used to date ancient organic materials?ACarbon-12BCarbon-14CUranium-238DCobalt-60 Like 0 Discuss 0Share
XIIMDCAT Chemistry Test#Chemistry of Hydrocarbons#Hydration Reactions1022Choose the best answerWhat are the main products of hydration of propene and propyne, respectively?A1-Propanol and propanalB2-Propanol and propanalCPropanone and propanolD2-Propanol and propanone Like 0 Discuss 0Share
Aldehydes and KetonesPreparation of Ketones by Oxidation of Alcohols1023Choose the best answerWhich reagent converts a secondary alcohol into a ketone?ALiAlH₄BPCCCNaBH₄DH₂/Pd Like 0 Discuss 0Share
ElectrochemistryCalculation of Oxidation Number1024Choose the best answerThe oxidation number of sulfur in SO₄²⁻ is:A−8B−6C+8D+6 Like 0 Discuss 0Share
MDCAT Chemistry Past Paper 2023#Capillary Action#Liquids1025Choose the best answerWater rises in a capillary tube because of: (MDCAT 2023)ACohesive force & adhesive forces are the sameBAdhesive forces of molecules exceed cohesive forceCCohesive force is greater than adhesive forceDCohesive force and adhesive force to explain the property in the above question is irrelevant Like 0 Discuss 0Share