Chemistry of HydrocarbonsFriedel–Crafts Alkylation11Choose the best answerFriedel–Crafts acylation is often preferred over direct alkylation because alkylation may:AAlways produce a poisonous gasBRelease exceptionally large heat onlyCProduce polyalkylated productsDBe impossible with AlCl₃ Like 0 Discuss 0Share
Chemistry of HydrocarbonsHybridization in Alkenes12Choose the best answerIn propene, CH₂=CH–CH₃, the hybridization of the carbon atoms from left to right is:Asp², sp², sp³Bsp, sp², sp³Csp³, sp², sp²Dsp², sp³, sp³ Like 0 Discuss 0Share
Chemistry of HydrocarbonsStructure and Bonding in Benzene13Choose the best answerThe total number of σ and π bonds in one molecule of benzene is:A6 σ and 9 πB9 σ and 3 πC12 σ and 3 πD6 σ and 6 π Like 0 Discuss 0Share1
SINDH MDCAT 2019 CHEMISTRY#Chemistry of Hydrocarbons#Petroleum Fractions14Choose the best answerThe carbon number of gasoline is: (Sindh MDCAT 2019)AC₅ - C₆BC₆ - C₇CC₅ - C₁₀DC₁₂ - C₁₅ Like 0 Discuss 0Share
Chemistry of HydrocarbonsFriedel–Crafts Acylation15Choose the best answerThe electrophile in Friedel–Crafts acylation is:ARCO⁺BR⁻CCl⁻DOH⁻ Like 0 Discuss 0Share