Class 10 Exam > Class 10 Questions > When aluminium is added to sodium hydroxide s...
Start Learning for Free
When aluminium is added to sodium hydroxide solution
- a)Oxygen is evolved
- b)Hydrogen is produced
- c)Water is produced
- d)No reaction takes place
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
When aluminium is added to sodium hydroxide solutiona)Oxygen is evolve...
When aluminium is added to sodium hydroxide solution, the correct answer is option 'B': Hydrogen is produced.
Explanation:
When aluminium reacts with sodium hydroxide solution, a redox reaction takes place, leading to the formation of hydrogen gas.
1. Formation of aluminium hydroxide:
Aluminium reacts with sodium hydroxide to form aluminium hydroxide, which is a white precipitate.
2Al + 6NaOH → 2Na₃AlO₃ + 3H₂O
2. Formation of sodium aluminate:
The aluminium hydroxide reacts further with sodium hydroxide to form sodium aluminate.
2Na₃AlO₃ + 6NaOH → 6Na₂AlO₂ + 3H₂O
3. Formation of hydrogen gas:
During the reaction, hydrogen gas is evolved as a byproduct.
2Al + 6H₂O → 2Al(OH)₃ + 3H₂
Key points:
- The reaction between aluminium and sodium hydroxide is an example of a displacement reaction, where aluminium displaces hydrogen from water.
- The reaction produces aluminium hydroxide and hydrogen gas as the main products.
- Aluminium hydroxide is a white precipitate, while hydrogen gas is colorless and odorless.
- The reaction is exothermic, meaning it releases heat energy.
- The evolution of hydrogen gas can be observed by the formation of gas bubbles or effervescence.
In conclusion, when aluminium is added to sodium hydroxide solution, the main reaction that occurs is the displacement of hydrogen from water, resulting in the production of aluminium hydroxide and hydrogen gas.
Explanation:
When aluminium reacts with sodium hydroxide solution, a redox reaction takes place, leading to the formation of hydrogen gas.
1. Formation of aluminium hydroxide:
Aluminium reacts with sodium hydroxide to form aluminium hydroxide, which is a white precipitate.
2Al + 6NaOH → 2Na₃AlO₃ + 3H₂O
2. Formation of sodium aluminate:
The aluminium hydroxide reacts further with sodium hydroxide to form sodium aluminate.
2Na₃AlO₃ + 6NaOH → 6Na₂AlO₂ + 3H₂O
3. Formation of hydrogen gas:
During the reaction, hydrogen gas is evolved as a byproduct.
2Al + 6H₂O → 2Al(OH)₃ + 3H₂
Key points:
- The reaction between aluminium and sodium hydroxide is an example of a displacement reaction, where aluminium displaces hydrogen from water.
- The reaction produces aluminium hydroxide and hydrogen gas as the main products.
- Aluminium hydroxide is a white precipitate, while hydrogen gas is colorless and odorless.
- The reaction is exothermic, meaning it releases heat energy.
- The evolution of hydrogen gas can be observed by the formation of gas bubbles or effervescence.
In conclusion, when aluminium is added to sodium hydroxide solution, the main reaction that occurs is the displacement of hydrogen from water, resulting in the production of aluminium hydroxide and hydrogen gas.
Free Test
FREE
| Start Free Test |
Community Answer
When aluminium is added to sodium hydroxide solutiona)Oxygen is evolve...
2Al + 2NaOH + 6H2O → 2[Al(OH)4]− + 2Na+ + 3H2
Attention Class 10 Students!
To make sure you are not studying endlessly, EduRev has designed Class 10 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 10.
|
Explore Courses for Class 10 exam
|
|
Similar Class 10 Doubts
Top Courses for Class 10View all
When aluminium is added to sodium hydroxide solutiona)Oxygen is evolvedb)Hydrogen is producedc)Water is producedd)No reaction takes placeCorrect answer is option 'B'. Can you explain this answer?
Question Description
When aluminium is added to sodium hydroxide solutiona)Oxygen is evolvedb)Hydrogen is producedc)Water is producedd)No reaction takes placeCorrect answer is option 'B'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about When aluminium is added to sodium hydroxide solutiona)Oxygen is evolvedb)Hydrogen is producedc)Water is producedd)No reaction takes placeCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When aluminium is added to sodium hydroxide solutiona)Oxygen is evolvedb)Hydrogen is producedc)Water is producedd)No reaction takes placeCorrect answer is option 'B'. Can you explain this answer?.
When aluminium is added to sodium hydroxide solutiona)Oxygen is evolvedb)Hydrogen is producedc)Water is producedd)No reaction takes placeCorrect answer is option 'B'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about When aluminium is added to sodium hydroxide solutiona)Oxygen is evolvedb)Hydrogen is producedc)Water is producedd)No reaction takes placeCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When aluminium is added to sodium hydroxide solutiona)Oxygen is evolvedb)Hydrogen is producedc)Water is producedd)No reaction takes placeCorrect answer is option 'B'. Can you explain this answer?.
Solutions for When aluminium is added to sodium hydroxide solutiona)Oxygen is evolvedb)Hydrogen is producedc)Water is producedd)No reaction takes placeCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10.
Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free.
Here you can find the meaning of When aluminium is added to sodium hydroxide solutiona)Oxygen is evolvedb)Hydrogen is producedc)Water is producedd)No reaction takes placeCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
When aluminium is added to sodium hydroxide solutiona)Oxygen is evolvedb)Hydrogen is producedc)Water is producedd)No reaction takes placeCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for When aluminium is added to sodium hydroxide solutiona)Oxygen is evolvedb)Hydrogen is producedc)Water is producedd)No reaction takes placeCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of When aluminium is added to sodium hydroxide solutiona)Oxygen is evolvedb)Hydrogen is producedc)Water is producedd)No reaction takes placeCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice When aluminium is added to sodium hydroxide solutiona)Oxygen is evolvedb)Hydrogen is producedc)Water is producedd)No reaction takes placeCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 10 tests.
|
|
Explore Courses for Class 10 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup