The most commonly used bleaching agent is_________?
Correct answer: C. chlorine
- A. alcohol
- B. carbon dioxide
- C. chlorine
- D. sodium chlorine
Explanation
Chlorine is widely used as a bleaching agent because it forms hypochlorous acid in water, which releases reactive oxygen species that oxidise coloured substances. Therefore option c is correct. Students may choose sodium chlorine because it sounds like a chlorine compound, but the correct compound name would be sodium hypochlorite, not sodium chlorine.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Reactions of Group I Elements
Group I elements have one valence electron, so their reactivity increases down the group as ionisation energy decreases. Their reactions with water, oxygen, hydrogen and halogens produce hydroxides, oxides, hydrides and halides, while the behaviour of lithium differs from the heavier metals because of its small ionic size.
Practise s-Block and p-Block Elements
1,359 free s-Block and p-Block Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Reactions of Group I Elements questions
What is the formula of Silver nitrate?
Silver nitrate is also known as____________?
Which of the following is the use of Silver nitrate?
Which one of the following is caustic potash?
Second ionization potential of alkali metals are very high due to_______________?
Which one of the following alkali metals forms only normal oxide when it reacts with O2 ?