The human body requires a ph. the clinical condition in which the blood ph is below is called acidosis. the clinical condition in which the blood ph is above 7.45 is called an aqueous solution in the blood that regulate ph is called a .

Stable

7.25

Alkalosis

Buffer

The answer to the next question is B

then its Increase decrease decrease increase  

and the last one is

increase

decrease

1:1

5:9

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.

answermeridional ;