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Question
Explain the following:
Nitrogen dioxide is a double acid anhydride.
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Solution
NO2 is called double acid anhydride because two acids – nitrous acid and nitric acid – are formed when it reacts with water.
\[\ce{2NO2 + H2O → HNO2 + HNO3}\]
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Explain the following:
H3PO3 is not a tribasic acid.
State the term defined by the following sentence:
An acidic solution in which there is only partial ionisation of the solute molecules.
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| 1. | Hydrochloric acid | a. | Fertilizer |
| 2. | Citric acid | b. | Baking powder |
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| f. | Effervescent salts |
Explain the following:
\[\ce{H3PO3}\] is not a tribasic acid.
