That sicke shape
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1 point
1) Miles Davis, a famous Jazz musician, has sickle-cell anemia. This disease
results in an abnormality on the oxygen-carrying protein, hemoglobin
which is found on red blood
cells. As a result, red blood cells become rigid
and sickle shaped. Due to this disease, Miles has developed a number of
health problems such as brittle bones, swelling of hands and feet,
breathing problems and low iron levels in the blood. As a trumpet player,
Miles Davis had to cancel several concert dates due to broken wrists and
hips. What is the underlying cause of his injuries?

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.