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Consider the following statements about ...

Consider the following statements about the chemical reactions
I.Chemical reactions involve reorganisation of atoms
II.Atoms can be either created or destroyed in a chemical reaction
Select the correct option

A

only I

B

only II

C

both I and II

D

None of these

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the statements about chemical reactions, we will analyze each statement based on the principles of chemistry. ### Step-by-Step Solution: 1. **Analyze Statement I**: - The first statement claims that "Chemical reactions involve reorganization of atoms." - According to Dalton's Atomic Theory, during a chemical reaction, the atoms present in the reactants are rearranged to form products. This means that atoms are neither created nor destroyed, but rather reorganized. - **Conclusion**: This statement is **true**. 2. **Analyze Statement II**: - The second statement asserts that "Atoms can be either created or destroyed in a chemical reaction." - This statement contradicts the law of conservation of mass, which states that in a chemical reaction, the total mass of the reactants must equal the total mass of the products. Therefore, atoms are conserved; they cannot be created or destroyed in a chemical reaction. - **Conclusion**: This statement is **false**. 3. **Determine the Correct Option**: - Since Statement I is true and Statement II is false, the correct option is that only the first statement is correct. ### Final Answer: - The correct option is that **only Statement I is true**.
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Knowledge Check

  • Atoms are neither created nor destroyed in a chemical reaction. This postulate was given by:

    A
    J. J. Thomson
    B
    Niels Bohr
    C
    John Dalton
    D
    Amedeo Avogadro.
  • Which of the following statements about a balanced chemical equation is true?

    A
    mass is conserved
    B
    atoms are conserved
    C
    mass as well as atoms are conserved
    D
    molecules are conserved
  • Correct statement about chemical adsorption is:-

    A
    Adsorption of gases on charcoal surface is an example of it
    B
    It has highly specific nature
    C
    Activation energy is comparetively low
    D
    It is multilayered
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