If hydrogen is removed from a substance, which process is it generally considered to be?
Answer and explanation
Correct answer: Oxidation
According to the classical definitions of redox reactions, removal of hydrogen from a substance is oxidation, while addition of hydrogen is reduction. For example, removal of hydrogen from hydrogen sulfide during oxidation changes the substance into sulfur or another oxidised product. Neutralisation concerns acid–base reaction, and displacement describes replacement of one element by another, so neither explains hydrogen removal here.
Frequently asked questions
What is the correct answer to this question?
Oxidation
Why is this the correct answer?
According to the classical definitions of redox reactions, removal of hydrogen from a substance is oxidation, while addition of hydrogen is reduction. For example, removal of hydrogen from hydrogen sulfide during oxidation changes the substance into sulfur or another oxidised product. Neutralisation concerns acid–base reaction, and displacement describes replacement of one element by another, so neither explains hydrogen removal here.
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.
