Chemistry
Four reactions are shown below in the diagram:
Which reactions produce water?
- 1 and 2
- 1 and 3
- 3 and 4
- 2 and 3
Chemical Reaction
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Answer
3 and 4
Reason — Reaction 3 shows burning of ethanol, which is an example of combustion and combustion produces water and carbon dioxide. Reaction 4 has dilute sulphuric acid and magnesium carbonate, a reaction of acid and carbonate produces salt, water and carbon dioxide. Hence, reaction 3 and reaction 4 produces water.
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