Question

What is Combination reaction??​

Answer 1

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☘️ A combination reaction is a reaction where two or more elements or compounds combine to form a single compound. Such reactions are represented by equations of the following form: X + Y → XY. The combination of two or more elements to form one compound is called combination reaction.

☘️ A combination reaction is a reaction in which two reactants combine to form one product. Oxygen and the halogens are very reactive elements and are likely to undergo combination reactions with other elements.

⚽ EXAMPLE OF COMBINATION REACTION .

$\longmapsto~\bf\red{NH_3~(g)~+~HCl~(g)~\longrightarrow~NH_4Cl~(g)~}$

$\longmapsto~\bf\red{CaO~(s)~+~CO_2~(g)~\longrightarrow~CaCO_3~(s)~}$

$\longmapsto~\bf\red{2NH_3~(g)~+~H_2SO_4~(aq)~\longrightarrow~(NH_4)_2SO_4~(aq)~}$

$\longmapsto~\bf\red{CO_2~(g)~+~O_2~(g)~\longrightarrow~2CO_2~(g)~}$

$\longmapsto~\bf\red{SO_2~(g)~+~O_2~(g)~\longrightarrow~2SO_3~(g)~}$

$\longmapsto~\bf\red{CO_2~(g)~+~C~(s)~\longrightarrow~2CO~(g)~}$

$\longmapsto~\bf\red{NO_2~(g)~+~O_2~(g)~\longrightarrow~2NO_2~(g)~}$

Answer 2

$\red\bigstar$ Answer

A combination reaction is a reaction where two or more elements or compounds combine to form a single compound.

Explanation:

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