Class 10 Exam > Class 10 Questions > What is a reduction reaction?a)addition of hy...
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What is a reduction reaction?
- a)addition of hydrogen to a substance
- b)addition of oxygen to a substance
- c)removal of hydrogen from a substance
- d)none of the above
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
What is a reduction reaction?a)addition of hydrogen to a substanceb)ad...
In terms of hydrogen and oxygen:
Addition of hydrogen to a substance: Reduction
Removal of oxygen from a substance: Reduction
Therefore, option A, "addition of hydrogen to a substance," correctly defines a reduction reaction.
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What is a reduction reaction?a)addition of hydrogen to a substanceb)ad...
Understanding Reduction Reactions
Reduction reactions are a fundamental concept in chemistry, particularly in the context of redox (reduction-oxidation) reactions.
Definition of Reduction
- Reduction is defined as the process where a substance gains electrons, leading to a decrease in its oxidation state.
- This process often involves the addition of hydrogen or the removal of oxygen.
Why Option A is Correct
- Addition of Hydrogen: When hydrogen is added to a substance, it effectively reduces the oxidation state of that substance. For example, adding hydrogen to a metal oxide can convert it into a metal, a clear example of reduction.
- Contrast with Oxidation: In contrast, oxidation involves the addition of oxygen or the removal of hydrogen. Therefore, when we talk about reduction, we specifically refer to the addition of hydrogen as a primary way to achieve it.
Examples of Reduction Reactions
- Hydrogenation: This is a common reduction reaction in organic chemistry where unsaturated hydrocarbons (like alkenes) are converted to saturated hydrocarbons by the addition of hydrogen.
- Metal Reduction: In metallurgy, metal oxides are reduced to their elemental forms by using hydrogen gas, showcasing the importance of reduction in extracting metals.
Conclusion
In summary, option A is the correct answer as it directly relates to the definition of reduction in terms of chemical reactions. The addition of hydrogen plays a crucial role in reducing various substances, demonstrating the essential nature of reduction in chemical processes.
Reduction reactions are a fundamental concept in chemistry, particularly in the context of redox (reduction-oxidation) reactions.
Definition of Reduction
- Reduction is defined as the process where a substance gains electrons, leading to a decrease in its oxidation state.
- This process often involves the addition of hydrogen or the removal of oxygen.
Why Option A is Correct
- Addition of Hydrogen: When hydrogen is added to a substance, it effectively reduces the oxidation state of that substance. For example, adding hydrogen to a metal oxide can convert it into a metal, a clear example of reduction.
- Contrast with Oxidation: In contrast, oxidation involves the addition of oxygen or the removal of hydrogen. Therefore, when we talk about reduction, we specifically refer to the addition of hydrogen as a primary way to achieve it.
Examples of Reduction Reactions
- Hydrogenation: This is a common reduction reaction in organic chemistry where unsaturated hydrocarbons (like alkenes) are converted to saturated hydrocarbons by the addition of hydrogen.
- Metal Reduction: In metallurgy, metal oxides are reduced to their elemental forms by using hydrogen gas, showcasing the importance of reduction in extracting metals.
Conclusion
In summary, option A is the correct answer as it directly relates to the definition of reduction in terms of chemical reactions. The addition of hydrogen plays a crucial role in reducing various substances, demonstrating the essential nature of reduction in chemical processes.
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What is a reduction reaction?a)addition of hydrogen to a substanceb)addition of oxygen to a substancec)removal of hydrogen from a substanced)none of the aboveCorrect answer is option 'A'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about What is a reduction reaction?a)addition of hydrogen to a substanceb)addition of oxygen to a substancec)removal of hydrogen from a substanced)none of the aboveCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is a reduction reaction?a)addition of hydrogen to a substanceb)addition of oxygen to a substancec)removal of hydrogen from a substanced)none of the aboveCorrect answer is option 'A'. Can you explain this answer?.
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