Alkyl HalidesSN1 Reaction456Choose the best answerWhich is NOT a characteristic of an SN₁ reaction?AFirst-order kineticsBCarbocation intermediateCConcerted one-step mechanismDPossibility of carbocation rearrangement Like 0 Discuss 0Share
Stoichiometry#Atomic Structure#Subatomic Particles457Choose the best answerWhich particle has a mass closest to 1 amu?AOne electronBOne protonCOne carbon-12 atomDOne oxygen atom Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Atomic Mass Unit458Choose the best answerOne atomic mass unit (1 u) is defined as:A1/16 of the mass of one oxygen-16 atomB1/12 of the mass of one carbon-12 atomC1/14 of the mass of one nitrogen-14 atomD1/10 of the mass of one neon-20 atom Like 0 Discuss 0Share
Stoichiometry 11#Physical and Chemical Changes459Choose the best answerWhich option represents a chemical change?ATwinkling of starsBCooking of vegetablesCCutting of fruitsDBoiling of water Like 0 Discuss 0Share
Sindh MDCAT 2020 Chemistry#Aldehydes and Ketones#Carbonyl Compounds460Choose the best answerSecondary alcohol is the product of reduction of which carbonyl compound? (Sindh MDCAT 2020)ACH₃CHOBCH₃COCH₃CHCHODCH₃CH₂CHO Like 0 Discuss 0Share