What kind of reaction is this ? P+02 -
P4010
O Synthesis
O Decomposition
O Single Replacement
O Double Replacement

Synthesis reaction

Explanation:

To know which option is correct, it important that we know what each option represents.

Synthesis reaction is a reaction in which two different elements react to form a single compound. For example

X + Y —> XY

Decomposition reaction is a reaction in which a compound splits into two or more simpler substance. For example

XY —> X + Y

Single Replacement reaction is a reaction in which one element replaces or displaces another element from a compound. For example

X + YZ —> XZ + Y

Double Replacement reaction is a reaction in which the parts of two ionic compounds exchange their ions to form a new compound. For example

WX + YZ —> WZ + YX

Now, considering the equation given above i.e

P + O₂ —> P₄O₁₀

We can see that P and O₂ reacted to produce a new compound (i.e P₄O₁₀).

Thus, the reaction is a synthesis reaction because two different elements (i.e P and O₂) reacted to form a single compound (i.e P₄O₁₀).