1.

Acetic acid is added to the solution of sodium carbonate the gas evolved does not turn purple colour of KMnO_(4) but turns lime water milky forming a compound (M) which becomes soluble by passing the same gas in excess forming another compound (N). But same obserbation is not obtained with boric acid. Purple colour of KMnO_(4) has not changed because:

Answer» <html><body><p>the gas has no oxidising property since central atom is in minimum oxidation state<br/>the gas has no reducingproperty since the central atom is in <a href="https://interviewquestions.tuteehub.com/tag/maximum-556915" style="font-weight:bold;" target="_blank" title="Click to know more about MAXIMUM">MAXIMUM</a> oxidation state<br/>the gas has no precipitattion characteristics<br/>the gas <a href="https://interviewquestions.tuteehub.com/tag/precipitates-1162809" style="font-weight:bold;" target="_blank" title="Click to know more about PRECIPITATES">PRECIPITATES</a> `CaCO_(3)` from line water</p>Solution :`Na_(2)CO_(3) <a href="https://interviewquestions.tuteehub.com/tag/overset-2905731" style="font-weight:bold;" target="_blank" title="Click to know more about OVERSET">OVERSET</a>(<a href="https://interviewquestions.tuteehub.com/tag/acoh-1966500" style="font-weight:bold;" target="_blank" title="Click to know more about ACOH">ACOH</a>)rarr CO_(2) overset(Ca(OH)_(2))rarr underset((M))(CaCO_(3)darr) overset(CO_(2))underset(H_(2)O)rarr underset((<a href="https://interviewquestions.tuteehub.com/tag/n-568463" style="font-weight:bold;" target="_blank" title="Click to know more about N">N</a>))(Ca(HCO_(3))_(2))`</body></html>


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