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b) i) Give the formula and name of a compound of nitrogen in each of the following oxidation states: -2, 0, +3. b) ii) In the contact process, what substance causes pollution if not controlled? A. How

Chemistry

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b) i) Give the formula and name of a compound of nitrogen in each of the following oxidation states:

Oxidation stateFormula of compoundName
-2N2H4\text{N}_2\text{H}_4Hydrazine
0N2\text{N}_2Nitrogen
+3HNO2\text{HNO}_2Nitrous acid

b) ii) In the contact process, what substance causes pollution if not controlled?
A. How does this substance cause pollution?
The substance that causes pollution if not controlled in the

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