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Selina Class 8 Chemistry Chapter 6 Solutions

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Selina Class 8 Chemistry Chapter 6 Solutions

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Questions and Answers

What happens during a chemical reaction?

Formation of identical substances

Formation of substances with random properties

Breaking of chemical bonds between the atoms or groups of atoms of reacting substances and rearrangement of atoms making new bonds to form new substances (correct)

No change in the arrangement of atoms

What is a chemical reaction?

A change in matter without any transformation

A physical change in matter involving transformation into substances with similar properties

Any chemical change in matter involving transformation into substances with distinct properties (correct)

A change in matter involving only physical properties

What is a chemical bond?

The force of repulsion between atoms in a molecule

The force of attraction that holds the atoms of a molecule together, in a compound (correct)

The force that prevents any chemical reaction from occurring

The force that causes atoms to separate from each other

What is the primary result of a chemical reaction?

<p>Formation of new substances with distinct properties (D)</p> Signup and view all the answers

What do chemical reactions involve?

<p>Transformation into substances with distinct properties (A)</p> Signup and view all the answers

Study Notes

Chemical Reactions

A chemical reaction is a process in which one or more substances (reactants) are converted into new substances (products) with different properties.
During a chemical reaction, chemical bonds are broken and formed, resulting in a change in the chemical composition of the reactants.

Chemical Bonds

A chemical bond is a force that holds atoms together in a molecule, formed when two or more atoms share or exchange electrons.

Primary Result of a Chemical Reaction

The primary result of a chemical reaction is the formation of new substances with different properties, which can have different textures, colors, or odors.

Involvement in Chemical Reactions

Chemical reactions involve the breaking and forming of chemical bonds, resulting in a change in the chemical composition of the reactants, often accompanied by a release or absorption of energy.

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Get free PDF download of Selina Solutions for ICSE Class 8 Chemistry Chapter 6 - Chemical Reactions. These expert-provided solutions help students excel in their studies and ace their examinations.