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CBSE Class 10 Answered

Sir , m not able to understand what is nascent oxygen ? And what do you mean by decomposition of acids ? If others acids are oxidizing agent then why then liberate H2 ?
Asked by sucharitasahoo1 | 28 Aug, 2017, 06:25: PM
answered-by-expert Expert Answer
"Nascent" just means newly-formed. A single oxygen atom, not yet bonded to anything.  Extremely powerful oxidiser when harnessed correctly.
Acids like sulphuric acid on thermal decomposition yield nascent oxygen[O].
H2SO4  ---> H2O + SO2 + [O]
This nascent oxygen oxidises non-metals,metals and inorganic compounds.
Sulphuric acid and nitric acid are oxidising agents whereas HCl is a reducing agent.
Acids react with metals to give metallic salts with the liberation of hydrogen gas. It is an examplof displacement reaction.
Mg + 2HCl -->  MgCl2 + H2
Answered by Vaibhav Chavan | 29 Aug, 2017, 10:47: AM
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