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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
Dilute NaOH can be tested with
(a) red litmus paper
(b) blue litmus paper
(c) lime water
(d) Na2CO3
Why does an aqueous solution of an acid conduct electricity?
What happens when a solution of sodium hydrogencarbonate is heated? Write equation of the reaction involved.
Answer the following question.
Identify the acid and base which form sodium hydrogen carbonate. Write the chemical equation in support of your answer. State whether this compound is acidic, basic, or neutral. Also, write its pH value.
Write any four physical properties of acids.
What is a neutralization reaction? Give an example.
What happens when a solution of an acid is mixed with a solution of a base in a test tube?
- The temperature of the solution increases
- The temperature of the solution decreases
- The temperature of the solution remains the same
- Salt formation takes place
What happens when nitric acid is added to egg shell?
Acids present in fruits and vegetables are called ______ acids.
______ & ______ metals do not react with HCl or HNO3.
