Nitrogen dioxide and sulphur dioxide have some properties in common, which property is shown by one of these compounds, but not by the other?

Options

A. is used as a food preservative
B. forms acid-rain
C. is a reducing agent
D. is soluble in water

Answer

3

Explanation

`NO_(2)` acts as an oxidising agent. Because `NO_(2)` deocomposes into nitric oxide `(NO)` and `O_(2)` at about `150^(@)C`, it will oxidized strongly burnign substances such as `Mg, P` and even charcoal .On the other hand the aqueous soltuion of `SO_(2) `acts as a reducing agent .
Neither `NO_(2)` nor `SO_(2)` is used as a food-preservation. Since both are acid anhydries, they form 'acid -rain, Both are water soluble .