In Test 1 you will carry out a titration between the solution of your product (which is basic) and the solution of HCl (which is acidic). To carry out a reasonable titration you will want to use about 10-20 mL of the HCl. The concentration of the HCl(aq) you'll be using is 1.00 M. 11. If the titration requires 11.52 mL of 1.00 M HCl, how many moles of HCl is this

the answer is option a.

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.