Given the reaction:
c2h2 + 2h2 → c2h6
this reaction represents

Explanation:

When two or more substances react and form some new substance it is called as chemical reaction .

A + B --> C + D

(reactants )   (products )

Types of chemical reaction

we come across different types of reactions that occur in nature .

Out of them , combination is also one type

Combination reaction

It is a reaction ,when two or more reactants react to form single product .

i.e A+BAB(IN THIS ONE SINGLE PRODUCT IS FORMED )

LIKE : H₂+Cl₂HCL

         (E)    (E)         (PRODUCT )

           SO₂+O₂SO₃

             ©   (E)        (PRODUCT )

           CO₂+H₂OH₂CO₃

In the above asked equation :

C₂H₂ + 2 H₂ --> C₂H₆

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.