Removal of hydrogen from a substance and addition of hydrogen to a substance indicate which processes, respectively?
Answer and explanation
Correct answer: Oxidation and reduction
In the hydrogen-based description of redox reactions, removal of hydrogen is oxidation, while addition of hydrogen is reduction. Therefore, the two processes in the stated order are oxidation followed by reduction. This is consistent with the broader electron-transfer idea: oxidation involves loss of electrons and reduction involves gain. Option B reverses the sequence; C and D name unrelated reaction types.
Frequently asked questions
What is the correct answer to this question?
Oxidation and reduction
Why is this the correct answer?
In the hydrogen-based description of redox reactions, removal of hydrogen is oxidation, while addition of hydrogen is reduction. Therefore, the two processes in the stated order are oxidation followed by reduction. This is consistent with the broader electron-transfer idea: oxidation involves loss of electrons and reduction involves gain. Option B reverses the sequence; C and D name unrelated reaction types.
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.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
