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p-Block Elements – II — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12Chemistryp-Block Elements – II2 Marks
Question
How will you prepare nitric oxide from sodium nitrite?
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Answer

When sodium nitrite reacts with ferrous sulphate in the presence of sulphuric acid to gives nitric oxide.
$
2 NaNO _2+2 FeSO _4+3 H _2 S \rightarrow Fe _2\left( SO _4\right)_3+2 NaHSO _4+2 H _2 O +2 NO
$

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