Question

When hydrogen is replaced by another element in a hydrocarbon, the reaction is called _____.

hydrogenation
addition
substitution
redox

Answer 1

substitution

Step-by-step explanation:

Answer 2

Answer: substitution

Step-by-step explanation:

Hydrogenation is defined as a chemical reaction in which hydrogens are added to hydrocarbons using reducing agents.

`C_2H_2+2H_2\rightarrow C_2H_6`

Addition reaction is defined as the reaction in which two reactants get added to give single product.

`A+B\rightarrow AB`

Substitution reaction is defined as the reaction in which one atom replaces the other atom from the compound.

`CH_4+Cl_2\rightarrow CH_3Cl+HCl`

Redox reaction is defined as the reaction in which oxidation and reduction reactions occur simultaneously. Oxidation reaction is defined as the reaction in which a substance looses its electrons.Reduction reaction is defined as the reaction in which a substance gains electrons.

`M+N^+\rightarrow M^++N`