Class 10 Exam > Class 10 Questions > What happens when Hydrogen combines with oxyg...
Start Learning for Free
What happens when Hydrogen combines with oxygen in the presence of an electric current?
- a)H2O is formed
- b)H2O2 is formed
- c)H2 gas is formed
- d)O2 gas is formed
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
What happens when Hydrogen combines with oxygen in the presence of an ...
When hydrogen combines with oxygen, it makes water. Now it normally takes a spark to do this, doesn’t have to be electric, could be a match, or whatever.
Just 2 hydrogen atoms and one oxygen atom, a little extra energy some how, and you get one water molecule.
Most Upvoted Answer
What happens when Hydrogen combines with oxygen in the presence of an ...
When hydrogen combines with oxygen in the presence of an electric current, the chemical reaction that takes place is known as electrolysis of water. This reaction occurs in an electrolytic cell, which consists of two electrodes (anode and cathode) immersed in a solution of water and an electrolyte.
Electrolysis of Water:
During the electrolysis of water, the following reactions occur at the electrodes:
1. At the cathode (negative electrode):
2H₂O + 2e⁻ → H₂ + 2OH⁻
Here, water molecules (H₂O) gain electrons (e⁻) from the cathode and are reduced to form hydrogen gas (H₂) and hydroxide ions (OH⁻).
2. At the anode (positive electrode):
4OH⁻ → 2H₂O + O₂ + 4e⁻
Hydroxide ions (OH⁻) lose electrons (e⁻) at the anode and are oxidized to form water (H₂O) and oxygen gas (O₂).
Final Result:
As a result of the electrolysis of water, hydrogen gas (H₂) is formed at the cathode, and oxygen gas (O₂) is formed at the anode. These gases are released as bubbles from their respective electrodes.
Overall Reaction:
The overall reaction for the electrolysis of water can be represented as follows:
2H₂O(l) → 2H₂(g) + O₂(g)
This means that for every two molecules of water, one molecule of oxygen gas and two molecules of hydrogen gas are produced.
Conclusion:
Therefore, when hydrogen combines with oxygen in the presence of an electric current during the process of electrolysis of water, the result is the formation of water (H₂O).
Electrolysis of Water:
During the electrolysis of water, the following reactions occur at the electrodes:
1. At the cathode (negative electrode):
2H₂O + 2e⁻ → H₂ + 2OH⁻
Here, water molecules (H₂O) gain electrons (e⁻) from the cathode and are reduced to form hydrogen gas (H₂) and hydroxide ions (OH⁻).
2. At the anode (positive electrode):
4OH⁻ → 2H₂O + O₂ + 4e⁻
Hydroxide ions (OH⁻) lose electrons (e⁻) at the anode and are oxidized to form water (H₂O) and oxygen gas (O₂).
Final Result:
As a result of the electrolysis of water, hydrogen gas (H₂) is formed at the cathode, and oxygen gas (O₂) is formed at the anode. These gases are released as bubbles from their respective electrodes.
Overall Reaction:
The overall reaction for the electrolysis of water can be represented as follows:
2H₂O(l) → 2H₂(g) + O₂(g)
This means that for every two molecules of water, one molecule of oxygen gas and two molecules of hydrogen gas are produced.
Conclusion:
Therefore, when hydrogen combines with oxygen in the presence of an electric current during the process of electrolysis of water, the result is the formation of water (H₂O).
Free Test
FREE
| Start Free Test |
Community Answer
What happens when Hydrogen combines with oxygen in the presence of an ...
When hydrogen reacts with oxygen then water is formed.
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
What happens when Hydrogen combines with oxygen in the presence of an electric current?a)H2O is formedb)H2O2 is formedc)H2 gas is formedd)O2 gas is formedCorrect answer is option 'A'. Can you explain this answer?
Question Description
What happens when Hydrogen combines with oxygen in the presence of an electric current?a)H2O is formedb)H2O2 is formedc)H2 gas is formedd)O2 gas is formedCorrect answer is option 'A'. 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 What happens when Hydrogen combines with oxygen in the presence of an electric current?a)H2O is formedb)H2O2 is formedc)H2 gas is formedd)O2 gas is formedCorrect answer is option 'A'. 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 What happens when Hydrogen combines with oxygen in the presence of an electric current?a)H2O is formedb)H2O2 is formedc)H2 gas is formedd)O2 gas is formedCorrect answer is option 'A'. Can you explain this answer?.
What happens when Hydrogen combines with oxygen in the presence of an electric current?a)H2O is formedb)H2O2 is formedc)H2 gas is formedd)O2 gas is formedCorrect answer is option 'A'. 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 What happens when Hydrogen combines with oxygen in the presence of an electric current?a)H2O is formedb)H2O2 is formedc)H2 gas is formedd)O2 gas is formedCorrect answer is option 'A'. 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 What happens when Hydrogen combines with oxygen in the presence of an electric current?a)H2O is formedb)H2O2 is formedc)H2 gas is formedd)O2 gas is formedCorrect answer is option 'A'. Can you explain this answer?.
Solutions for What happens when Hydrogen combines with oxygen in the presence of an electric current?a)H2O is formedb)H2O2 is formedc)H2 gas is formedd)O2 gas is formedCorrect answer is option 'A'. 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 What happens when Hydrogen combines with oxygen in the presence of an electric current?a)H2O is formedb)H2O2 is formedc)H2 gas is formedd)O2 gas is formedCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
What happens when Hydrogen combines with oxygen in the presence of an electric current?a)H2O is formedb)H2O2 is formedc)H2 gas is formedd)O2 gas is formedCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for What happens when Hydrogen combines with oxygen in the presence of an electric current?a)H2O is formedb)H2O2 is formedc)H2 gas is formedd)O2 gas is formedCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of What happens when Hydrogen combines with oxygen in the presence of an electric current?a)H2O is formedb)H2O2 is formedc)H2 gas is formedd)O2 gas is formedCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice What happens when Hydrogen combines with oxygen in the presence of an electric current?a)H2O is formedb)H2O2 is formedc)H2 gas is formedd)O2 gas is formedCorrect answer is option 'A'. 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