How does substituting a hydrogen atom with a halogen in a hydrocarbon affect the resulting compound?

A.
All the single bonds in the original molecule change to double bonds.
B.
The boiling point of the new compound increases.
C.
The bonds between the carbon atoms in the molecule become weaker.
D.
The resulting compound is called a saturated hydrocarbon.
E.
The substitution allows each carbon atom to accept more than four valence electrons.

Respuesta :

Substituting a hydrogen atom with a halogen in a hydrocarbon:


- the single bond remains single. A is wrong.


- the bond with Hydrogen is as strong as with a Halogen. C is wrong


- a hydrocarbon is saturated if there is no double bond. We do not know that so D is wrong.


- carbon will always have four valence electrons. E is wrong.



By elimination, the correct answer is B. The boiling point of the new compound increases.


The boiling point of the new compound increases while substituting a hydrogen atom with a halogen in a hydrocarbon ,therefore option (b) is correct .

What do you mean by the boiling point of the substance ?

The temperature at which substance change from liquid to the gaseous state is known as the boiling point.

The boiling point of a substance is the temperature at which both its liquid and vapor or gas states exist in equilibrium. Boiling point only occurs when heat is applied to the liquid substance.

It is also defined as the temperature at which liquid boils. The boiling point of water at sea level is 100∘C . It is equal to 373.15 on the Kelvin .

The boiling point of the new compound increases while substituting a hydrogen atom with a halogen in a hydrocarbon ,hence option (b) is correct .

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