Question

how many type of reactions are on the basis of velocity​

Answer 1

Answer:

There are 5 types of reaction. They are: Combination reaction: formation of one product from two or more reactants. Decomposition reaction: formation of two or more reactants from a single reactants.

Answer 2

Answer:

Five types of reactions in the basis of velocity.

Explanation:

(1) Combination Reaction :

• A reaction in which two or more reactants combine with each other to produce a single product is called combination reaction. It is also known as a synthesis reaction.
• It can be shown as: X + Y $\longrightarrow$ XY
• Example of combination reaction:

          2Na + Cl₂  $\longrightarrow$  2NaCl

(2) Decomposition reaction:

• A reaction in which a single compound will break into two or more simple compounds is called a decomposition reaction.
• It can be shown as:  XY  $\longrightarrow$  X + Y
• Decomposition reaction is exactly  opposite of the combination reaction.
• Example of a decomposition reaction:

        CaCO₃  $\longrightarrow$  CaO + CO₂

• When a compound decomposes due to heating  during a reaction is called a thermal decomposition reaction.

(3) Displacement Reaction:

• A  reaction in which aqueous salt solution, a more reactive element displaces a less reactive element. Displacement Reaction is also called a substitution reaction.
• It can be shown as:  X + YZ   $\longrightarrow$  XZ + Y
• Example of displacement reaction:

        Zn + CuSO₄  $\longrightarrow$  ZnSO₄ + Cu

(4)  Double Displacement Reaction:

• A reaction, in which ions get exchanged between two reactants and form a new compound is known as a double displacement reaction.   Double displacement reaction is also called a metathesis reaction.
• It can be shown as:  XY + ZA    $\longrightarrow$  XZ + YA
• Example of double displacement reaction:
• BaCl₂ + Na₂SO₄   $\longrightarrow$   BaSO₄ + 2NaCl

(5) Precipitation reaction:

• A chemical reaction which includes the formation of an insoluble product (precipitate; solid) is known as Precipitation reaction.
• The reactants can be soluble, but the product produced would be insoluble and can be separated out as a solid.