. A pharmacist mixes together 20 g of crystals of compound A and 10 g of crystals of compound B. The mixture is then dissolved in 120 mL of water to
make cough syrup.
The mixture will most likely dissolve fastest under which of the following sets
of conditions?

the correct answer would be d. hope this !

2b2t

explanation:

2b2t

the answer is c

tell me if wrong

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.