CH-535
Carboxylic acids
Chemistry · Secondary 3 · Medium · Carboxylic acids
A piece of magnesium ribbon is added to excess dilute ethanoic acid. Which observation correctly describes what happens?
- Effervescence; colourless gas turns limewater milky.
- Effervescence; colourless gas produces a ‘pop’ with a lighted splint.
- Brown gas with a pungent smell is produced.
- Colourless gas relights a glowing splint.
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