Gwhich is a better nucleophile in an aqueous solution? which is a better nucleophile in an aqueous solution? ro− rs− request answer part c which is a better nucleophile in dmso? which is a better nucleophile in ? ro− rs−

In aqueous solution, the nucleophilicity depends on the factor that which can make stronger H-bonding as the one which make stronger H-bond will be more sterically hindered by solvent molecules, and its electrons are less available to donate to other atom, that makes it weak nucleophile. So between RO⁻ AND RS⁻, RO⁻ is weak nucleophile as O is more electronegative, smaller in size than S so make stronger H-bond and weak nucleophile .

In DMSO, DMSO is aprotic solvent, so here no concept of H-bonding is required, RO⁻ is stronger nucleophile as O is more electronegative, smaller in size than S can donate electrons easily .

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.

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