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Activity 2.2
• Take some finely chopped onions in a plastic bag along with some
strips of clean cloth. Tie up the bag tightly and leave overnight in
the fridge. The cloth strips can now be used to test for acids and
bases
• Take two of these cloth strips and check their odour.
Keep them on a clean surface and put a few drops of dilute HCI
solution on one strip and a few drops of dilute NaOH solution on
the other
Answers
Answer:
The most common peroxide is hydrogen peroxide (H2O2), colloquially known simply as "peroxide". It is marketed as a solution in water at various concentrations. Since hydrogen peroxide is nearly colorless, so are these solutions. It is mainly used as an oxidant and bleaching agent. However, hydrogen peroxide is also biochemically produced in the human body, largely as a result of a range of oxidase enzymes.[2] Concentrated solutions are potentially dangerous when in contact with organic compounds.
O−O bond length = 147.4 pm O−H bond length = 95.0 pm
Structure and dimensions of H2O2.
Aside from hydrogen peroxide, some other major classes of peroxides are:
Peroxy acids, the peroxy derivatives of many familiar acids, examples being peroxymonosulfuric acid and peracetic acid.
Metal peroxides, examples being barium peroxide (BaO2) and sodium peroxide (Na2O2).
Organic peroxides, compounds with the linkage C−O−O−C or C−O−O−