Question

Give one word for the following:
1. Reaction involving transfer of electrons
2. The reaction that involves the replacement of an element or ion from one compound
with another
3. The reaction in which positive ions and negative ions switch their positions and form
new products
4. The reactions in which an insoluble residue is formed
5. The reaction in which a compound breaks down into two or more components ( ch 5 physical and chemical change class 7 )​

Answer 1

Required Answers:-

Below are the definitions of different reactions which are related with their names. Here the reactions:

• 1. Reaction involving transfer of electrons: Redox
• 2. The reaction that involves the replacement of an element or ion from one compound with another: Displacement reaction
• 3. The reaction in which positive ions and negative ions switch their positions and form new products: Double displacement reaction.
• 4. The reactions in which an insoluble residue is formed: Precipitation reaction
• 5. The reaction in which a compound breaks down into two or more components: Decomposition reaction

Explore more!!

Reactions are the cause of chemical changes. It is often represented by a equation where reactants and products are involved.

• The reactants are written in the left hand side and products in right hand side.
• The arrow directs from reactants to products.
• The physical state and conditions involved may/maynot be mentioned$.$

Answer 2

Answer:

$\sf\boxed{\bold{\pink{Give\: One\: Word\: Of\: The\: Following\: :-}}}$

1) Reaction involving transfer of electrons :

$\implies$ $\sf\bold{\red{Redox}}$

2) The reaction that involves the replacement of an element or ion from one compound with another :

$\implies$ $\sf\bold{\red{Displacement\: reaction}}$

3) The reaction in which positive ions and negative ions switch their position and form new product :

$\implies$ $\sf\bold{\red{Double\: displacement\: reaction}}$

4) The reaction in which an absolute residue is formed :

$\implies$ $\sf\bold{\red{Precipitation\: reaction}}$

5) The reaction in which a compound breaks down into two or more components :

$\implies$ $\sf\bold{\red{Decomposition\: reaction}}$

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$\bigstar$ Extra Information :-

Types of chemical reaction ?

$\mapsto$ There are five types of chemical reaction are as follows :

• Combination reaction.
• Decomposition reaction.
• Single replacement reaction.
• Double replacement reaction.
• Combustion reaction.