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प्रश्न
What happens when an acid reacts with a metal oxide? Explain with the help of an example. Write a balanced equation for the reaction involved.
What happens when an acid reacts with a metal oxide? Explain with the help of an example.
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उत्तर
Acids react with metal oxides to form salt and water.
\[\ce{Metal oxide + Acid -> Salt + Water}\]
Example:
Copper (II) oxide is a metal oxide. Dilute hydrochloric acid reacts with copper (II) oxide to form copper (II) chloride and water.
\[\ce{\underset{(Black)}{\underset{Copper (II) oxide}{{CuO}_{(s)}}} + \underset{Hydrochloric acid}{2HCl_{(aq)}} -> \underset{(Blue-green)}{\underset{Copper (II) chloride}{CuCl2_{(aq)}}} + \underset{Water}{H2O_{(l)}}}\]
संबंधित प्रश्न
When phenolphthalein is added to NaOH, the colour of the solution will become _________.
- colourless
- red
- pink
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What happens when an acid reacts with a metal? Give the chemical equation of the reaction involved.
What happens when an acid reacts with a metal hydrogencarbonate? Write equation of the reaction which takes place.
What happens when a solution of sodium hydrogencarbonate is heated? Write equation of the reaction involved.
Explain why, sodium hydrogencarbonate is used as an antacid.
Phenolphthalein is a synthetic type of indicator.
Choose the correct alternative and rewrite the following sentence.
Phenolphthalein is ___________ type of indicator.
Which of the following salts does not contain any water of crystallisation?
Vinegar is ______ in taste.
Write notes on the properties of acids.
