Removal of hydrogen and addition of hydrogen are associated with which processes, respectively?
Answer and explanation
Correct answer: Oxidation and reduction
In the hydrogen-based definitions of redox chemistry, removal of hydrogen from a substance is oxidation, while addition of hydrogen is reduction. Thus the required order is oxidation followed by reduction, so option A is correct. Option B reverses the two processes. Precipitation, decomposition, combination, and displacement describe other reaction patterns and do not define the gain or loss of hydrogen in this context.
Frequently asked questions
What is the correct answer to this question?
Oxidation and reduction
Why is this the correct answer?
In the hydrogen-based definitions of redox chemistry, removal of hydrogen from a substance is oxidation, while addition of hydrogen is reduction. Thus the required order is oxidation followed by reduction, so option A is correct. Option B reverses the two processes. Precipitation, decomposition, combination, and displacement describe other reaction patterns and do not define the gain or loss of hydrogen in this context.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
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