Which metal is preferred for the preparation of hydrogen(i) from water?(ii) from acid?
Question
Which metal is preferred for the preparation of hydrogen
(i) from water?
(ii) from acid?
Solution
(i) The metal preferred for the preparation of hydrogen from water is usually a reactive metal like Sodium (Na) or Potassium (K). Here are the steps:
- Sodium or Potassium is added to water.
- The metal reacts with water to form metal hydroxide and hydrogen gas.
- The reaction is highly exothermic, so the hydrogen gas produced will ignite, showing a flame.
(ii) The metal preferred for the preparation of hydrogen from acid is usually a less reactive metal like Zinc (Zn) or Iron (Fe). Here are the steps:
- Zinc or Iron is added to an acid, usually Hydrochloric acid or Sulfuric acid.
- The metal reacts with the acid to form a salt and hydrogen gas.
- The hydrogen gas can be collected and used for various purposes.
Similar Questions
Compare hydrogen with alkali metals on the basis of :(i) Ion formation(ii) Reducing power(iii) Reaction with oxygen(iv) Oxide formation
Which of the following acids is commonly used to remove rust from metal surfaces
Hydrogen and what other substance is known to form water?Group of answer choicesoxygenheliumsiliconenirogen
Which of the following compounds formed between non-metals will NOT dissolve in water?Ahydrogen chlorideBsilicon(IV) oxideCcarbon dioxideDsulfur dioxide
Which of the following is NOT a property of group 1 metals?React with water to form hydrogenVery reactiveSoft and shinyLow melting point
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.