An oxidation reaction involves the loss of electrons or an increase in oxidation state. Chemical changes result in the formation of new substances. Physical changes alter the form or appearance but not the chemical composition.
Which one among the following is an example of oxidation reaction ?
Asked in UPSC NDA 2 2024 · Topic: Physical and Chemical Changes, Solution (Definition and Characteristics of Chemical Changes (Chemical Reactions))
More Chemistry questions
- Which one among the following is an example of chemical change ?
- Choose the best fire extinguisher :
- Fermentation is a process in which :
- Which spectroscopy is used in chemical examination of interstellar space?
- Which one of the statements is correct for Li-ion batteries?
- Which of the following is NOT correctly matched?
- When an iron nail is dipped in a solution of copper sulphate, the iron nail becomes brownish in colour and the blue colour of copper sulphate solution fades after some time. The reaction is an example of chemical
- The following item consists of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below : Code : Statement I : Catalytic hydrogenation is highest when the catalyst remains in the powdered form Statement II : When a catalyst is in the powdered form, its surface area becomes highest