Question

What are the different types of chemical reactions? Give their names and one example of each type.

Answer 1

Answer:

The five basic types of chemical reactions are combination, decomposition, single-replacement, double-replacement, and combustion. Analyzing the reactants and products of a given reaction will allow you to place it into one of these categories. Some reactions will fit into more than one category.

Explanation:

The five basic types of chemical reactions are combination, decomposition, single-replacement, double-replacement, and combustion. Analyzing the reactants and products of a given reaction will allow you to place it into one of these categories. Some reactions will fit into more than one category.

Mark as brilliant

Answer 2

Explanation:

Chemical reaction →

The reaction in which property of a substance completely changes

ex :- H2 + O2 → H2O

Here , H2 is very inflammable and O helps in combustion but Water makes combustion stop.

So , all those reactions in which property of a substance changes completely it is called chemical reaction

Types of Chemical Reaction →

(1) Combination Reaction

When magnesium is burnt in air (oxygen), magnesium oxide is formed. In this reaction, magnesium is combined with oxygen.

Mg + O2 ⇨ 2MgO

Magnesium + Oxygen ⇨ Magnesium oxide

When carbon is burnt in oxygen (air), carbon dioxide is formed. In this reaction, carbon is combined with oxygen.

C + O2 ⇨ CO2

Carbon + Oxygen ⇨ Carbon dioxide

(2) Decomposition Reaction

When calcium carbonate is heated, it decomposes into calcium oxide and carbon dioxide

CaCO3 ⇨ CaO + CO2

Calcium carbonate ⇨ Calcium oxide + Carbon dioxide

(3) Displacement Reaction

When zinc reacts with hydrochloric acid, it gives hydrogen gas and zinc chloride.

Zn + 2HCl ⇨ ZnCl2 + H2

When zinc reacts with copper sulphate, it forms zinc sulphate and copper metal.

Zn + CuSO4 ⇨ ZnSO4 + Cu

When silver metal is dipped in copper nitrate, no reaction takes place because silver metal is less reactive than copper.

Ag + Cu(NO3 )2 ⇨ No reaction takes place

(4) Double Displacement Reaction

AB + CD → AD + CB

Double replacement reactions may involve reactants that contain either ionic or covalent bonds, but the type of reaction is more common with ionic compounds. Acids and bases may participate in double replacement reactions. Usually, the solvent is water.

AgNO3 + NaCl → AgCl + NaNO3

(5) Oxidation and Reduction Reaction

Ag(s)+H2S→Ag2S(g)+H2(g)