34. Which type of reaction is represented by the equation?
CH. + Biz - CH. Br + HB,
A suhstitution
C. esterification
D. polymerization

Option A. Substitution

Explanation:

To know which option is correct, let us define each option. This is illustrated below:

A substitution reaction is a reaction in which an halogen replaces hydrogen in a hydrocarbon to produce alkyl halide and the corresponding acid. For example:

RH + X₂ –> RX + HX

NOTE:

R => is an alkyl group

X => is an halogen (F₂, Cl₂, Br₂ or I₂)

Addition reaction is a reaction in which two reactants combined to form a new compound without any loss of the reactants. This reaction is peculiar to only unsaturated hydrocarbon. For example:

CₓHᵧ + A₂ —> ACₓHᵧA

NOTE:

CₓHᵧ => unsaturated hydrocarbon (alkene, alkyne)

A₂ => halogen (F₂, Cl₂, Br₂ or I₂) or HBr, HCl etc

Esterification is a reaction involving carbonxylic and alcohol to produce ester and water. For example:

RCOOH + HOR —> RCOOR + H₂O

NOTE:

R => is an alkyl group

Polymerization is a process of reacting smaller molecules called monomers to form a larger molecule called polymer.

With the information provided above, we can see that the reaction:

CH₄ + Br₂ —> CH₃Br + HBr

Is a substitution reaction since Br replaces H in CH₄ to produce CH₃Br and the corresponding acid i.e HBr

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

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