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प्रश्न
The metal that will not produce hydrogen gas when reacted with dilute acids.
विकल्प
Iron
Lead
Magnesium sulphite
Ferric chloride
Zinc
Copper
Sodium sulphide
Ferrous sulphate
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उत्तर
Copper
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संबंधित प्रश्न
Why should curd and sour substances not be kept in brass and copper vessels?
How is the concentration of hydronium ions (H3O+) affected when the solution of an acid is diluted?
10 mL of a solution of NaOH is found to be completely neutralised by 8 mL of a given solution of HCl. If we take 20 mL of the same solution of NaOH, the amount of HCl solution (the same solution as before) required to neutralise it will be:
On adding dilute hydrochloric acid to copper oxide powder, the solution formed is blue-green.
- Predict the new compound formed which imparts a blue-green colour to solution.
- Write a balanced chemical equation of the reaction which takes place.
- On the basis of the above reaction, what can you say about the nature of copper oxide?
A substance X which is used as an antacid reacts with dilute hydrochloric acid to produce a gas Y which is used in one type of fire-extinguisher. Name the substance X and gas Y. Write a balanced equation for the chemical reaction which takes place.
Define an acid.
Lime water reacts with chlorine to form:
Solutions of acids conduct ______.
The formula of bleaching powder is ______.
The taste of acid is ______.
