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Assertion : The oxidation numbers are ar...

Assertion : The oxidation numbers are artificial, they are useful as a book keeping device of elements in reactions
Reason : The oxidation numbers do not usually represent real charge on atoms, they are simply conventions that indicate what the maximum charge could possibly be on an atom in a molecule.

A

If both the assertion and reason are true statement and reason is correct explanation of the assertion .

B

If both the assertion and reason are true statement but reason is not a correct explanation of the assertion .

C

If the assertion is true but the reason is a false statement.

D

If both assertion and reason are false statements.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze the assertion and reason statements provided. ### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that oxidation numbers are artificial and serve as a bookkeeping device in chemical reactions. - This means that oxidation numbers are not actual charges on atoms but rather a way to keep track of how many electrons are gained or lost during a reaction. 2. **Analyzing the Reason**: - The reason given states that oxidation numbers do not usually represent the real charge on atoms; they are conventions indicating the maximum possible charge on an atom in a molecule. - This implies that oxidation numbers are a simplified way to understand electron transfer in reactions, not the actual charge. 3. **Examples to Illustrate**: - Consider potassium dichromate (K₂Cr₂O₇). The oxidation state of chromium is +6, calculated based on the oxidation states of potassium (+1) and oxygen (-2). - In another compound, chromium hydroxide (Cr(OH)₃), the oxidation state of chromium is +3. - These different oxidation states show that the same element (chromium) can have different oxidation numbers in different compounds, indicating that these numbers are not fixed charges. 4. **Conclusion**: - Both the assertion and reason are correct. The assertion correctly identifies oxidation numbers as a bookkeeping tool, while the reason explains that these numbers do not reflect actual charges but rather the potential maximum charge. - Therefore, the correct answer is that both the assertion and reason are true, and the reason explains the assertion. ### Final Answer: Both the assertion and reason are correct, and the reason explains the assertion.
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