SINDH MDCAT 2019 CHEMISTRY#Alkyl Halides#SN2 Reaction36Choose the best answerSN₂ reactions can be best carried out with: (Sindh MDCAT 2019)APrimary alkyl halidesBSecondary alkyl halidesCTertiary alkyl halidesDBoth primary and tertiary alkyl halides Like 0 Discuss 0Share
SINDH MDCAT 2019 CHEMISTRY#Aluminium Ores#S- and P-Block Elements37Choose the best answerThe chief ore of Aluminum is: (Sindh MDCAT 2019)ANa₃AlF₆BAl₂O₃ · nH₂OCAl₂O₃DAl₂O₃ · H₂O Like 0 Discuss 0Share
SINDH MDCAT 2019 CHEMISTRY#Chemical Kinetics#Order of Reaction38Choose the best answerIn a zero order reaction, the rate is independent of: (Sindh MDCAT 2019)Atemperature of reactionBconcentration of reactionCconcentration of productsDcatalyst used Like 0 Discuss 0Share
SINDH MDCAT 2019 CHEMISTRY#Diamond Structure#Solids39Choose the best answerDiamond is a bad conductor because it: (Sindh MDCAT 2019)Ahas a tight structureBhas high densityChas no free electron in crystalDis transparent to light Like 0 Discuss 0Share
SINDH MDCAT 2019 CHEMISTRY#Alkyl Halides#E1 Reaction40Choose the best answerThe rate of E1 reaction depends upon: (Sindh MDCAT 2019)AThe concentration of substrateBThe concentration of nucleophileCThe concentration of nucleophile and substrateDThe amount of the solvent used Like 0 Discuss 0Share