JEE Exam > JEE Questions > In the chemical reaction between stoichiometr...
Start Learning for Free
In the chemical reaction between stoichiometric quantities of KMnO4 and KI in weakly basic solution, what is the number of moles of I2 released for 4 moles of KMnO4 consumed ?
Correct answer is '6'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
In the chemical reaction between stoichiometric quantities of KMnO4 an...
KMnO4 + KI → MnO2 + I2
Eq of KMnO4 = Eq of I2
4 × 3 = n × 2
n = 6
Eq of KMnO4 = Eq of I2
4 × 3 = n × 2
n = 6
Most Upvoted Answer
In the chemical reaction between stoichiometric quantities of KMnO4 an...
Solution:
The given chemical reaction is:
2KMnO4 + 10KI + 8H2O → 2MnO2 + 5I2 + 2KOH + 8H2O
From the balanced chemical equation, we can see that:
- 2 moles of KMnO4 react with 10 moles of KI to produce 5 moles of I2
- Therefore, 4 moles of KMnO4 will react with 20 moles of KI to produce 10 moles of I2
- However, the reaction takes place in weakly basic solution, which means that some of the iodine produced will react with hydroxide ions (OH-) to form iodide ions (I-)
- From the balanced chemical equation, we can see that the reaction produces 2 moles of KOH for every 2 moles of KMnO4 consumed
- Therefore, for 4 moles of KMnO4 consumed, the reaction will produce 4 moles of KOH
- These 4 moles of KOH will react with 4 moles of I2 to form 4 moles of KI and 2 moles of water (H2O)
- Therefore, out of the 10 moles of I2 produced, 4 moles will react with KOH to form KI and H2O, leaving 6 moles of I2 unreacted and released
Hence, the number of moles of I2 released for 4 moles of KMnO4 consumed is 6.
The given chemical reaction is:
2KMnO4 + 10KI + 8H2O → 2MnO2 + 5I2 + 2KOH + 8H2O
From the balanced chemical equation, we can see that:
- 2 moles of KMnO4 react with 10 moles of KI to produce 5 moles of I2
- Therefore, 4 moles of KMnO4 will react with 20 moles of KI to produce 10 moles of I2
- However, the reaction takes place in weakly basic solution, which means that some of the iodine produced will react with hydroxide ions (OH-) to form iodide ions (I-)
- From the balanced chemical equation, we can see that the reaction produces 2 moles of KOH for every 2 moles of KMnO4 consumed
- Therefore, for 4 moles of KMnO4 consumed, the reaction will produce 4 moles of KOH
- These 4 moles of KOH will react with 4 moles of I2 to form 4 moles of KI and 2 moles of water (H2O)
- Therefore, out of the 10 moles of I2 produced, 4 moles will react with KOH to form KI and H2O, leaving 6 moles of I2 unreacted and released
Hence, the number of moles of I2 released for 4 moles of KMnO4 consumed is 6.
Attention JEE Students!
To make sure you are not studying endlessly, EduRev has designed JEE study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in JEE.
|
Explore Courses for JEE exam
|
|
Similar JEE Doubts
Top Courses for JEEView all
In the chemical reaction between stoichiometric quantities of KMnO4 and KI in weakly basic solution, what is the number of moles of I2 released for 4 moles of KMnO4 consumed ?Correct answer is '6'. Can you explain this answer?
Question Description
In the chemical reaction between stoichiometric quantities of KMnO4 and KI in weakly basic solution, what is the number of moles of I2 released for 4 moles of KMnO4 consumed ?Correct answer is '6'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about In the chemical reaction between stoichiometric quantities of KMnO4 and KI in weakly basic solution, what is the number of moles of I2 released for 4 moles of KMnO4 consumed ?Correct answer is '6'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the chemical reaction between stoichiometric quantities of KMnO4 and KI in weakly basic solution, what is the number of moles of I2 released for 4 moles of KMnO4 consumed ?Correct answer is '6'. Can you explain this answer?.
In the chemical reaction between stoichiometric quantities of KMnO4 and KI in weakly basic solution, what is the number of moles of I2 released for 4 moles of KMnO4 consumed ?Correct answer is '6'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about In the chemical reaction between stoichiometric quantities of KMnO4 and KI in weakly basic solution, what is the number of moles of I2 released for 4 moles of KMnO4 consumed ?Correct answer is '6'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the chemical reaction between stoichiometric quantities of KMnO4 and KI in weakly basic solution, what is the number of moles of I2 released for 4 moles of KMnO4 consumed ?Correct answer is '6'. Can you explain this answer?.
Solutions for In the chemical reaction between stoichiometric quantities of KMnO4 and KI in weakly basic solution, what is the number of moles of I2 released for 4 moles of KMnO4 consumed ?Correct answer is '6'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE.
Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of In the chemical reaction between stoichiometric quantities of KMnO4 and KI in weakly basic solution, what is the number of moles of I2 released for 4 moles of KMnO4 consumed ?Correct answer is '6'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
In the chemical reaction between stoichiometric quantities of KMnO4 and KI in weakly basic solution, what is the number of moles of I2 released for 4 moles of KMnO4 consumed ?Correct answer is '6'. Can you explain this answer?, a detailed solution for In the chemical reaction between stoichiometric quantities of KMnO4 and KI in weakly basic solution, what is the number of moles of I2 released for 4 moles of KMnO4 consumed ?Correct answer is '6'. Can you explain this answer? has been provided alongside types of In the chemical reaction between stoichiometric quantities of KMnO4 and KI in weakly basic solution, what is the number of moles of I2 released for 4 moles of KMnO4 consumed ?Correct answer is '6'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice In the chemical reaction between stoichiometric quantities of KMnO4 and KI in weakly basic solution, what is the number of moles of I2 released for 4 moles of KMnO4 consumed ?Correct answer is '6'. Can you explain this answer? tests, examples and also practice JEE tests.
|
|
Explore Courses for JEE 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
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup