NEET Exam > NEET Questions > The formula mass of Mohr's salt is 392. The ...
Start Learning for Free
The formula mass of Mohr's salt is 392. The iron present in it is oxidised by KMnO4 in acid medium. The equivalent mass of Mohr's salt is
- a)392
- b)31.6
- c)278
- d)156
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
The formula mass of Mohr's salt is 392. The iron present in it is oxi...
Mohr's salt is FeSO4.(NH4)2SO4.6H2O.
Fe2+ present in it is oxidized to Fe3+.
So, we have, Fe2+ → Fe3+ +e
= 392
Free Test
FREE
| Start Free Test |
Community Answer
The formula mass of Mohr's salt is 392. The iron present in it is oxi...
Formula Mass of Mohr's Salt: 392
Mohr's salt, also known as ferrous ammonium sulfate, has a formula mass of 392. This means that 1 mole of Mohr's salt weighs 392 grams.
Equivalent Mass of Mohr's Salt
The equivalent mass of a substance is the mass which combines with or displaces 1.008 grams of hydrogen or 8.0 grams of oxygen. In the case of Mohr's salt, the equivalent mass is equal to its formula mass, which is 392.
Iron Oxidation by KMnO4 in Acid Medium
When iron in Mohr's salt is oxidized by KMnO4 in an acid medium, the following reaction occurs:
5Fe^2+ + MnO4^- + 8H^+ → 5Fe^3+ + Mn^2+ + 4H2O
Calculation of Equivalent Mass
In this reaction, 1 mole of iron (Fe) reacts with 1 mole of KMnO4. Since the formula mass of Fe is 56, and the molar ratio of Fe to KMnO4 is 1:1, the equivalent mass of Fe in this reaction is 56. Therefore, the equivalent mass of Mohr's salt, which contains iron, is equal to the formula mass of Mohr's salt, which is 392.
Therefore, the correct answer is option 'A' (392).
Mohr's salt, also known as ferrous ammonium sulfate, has a formula mass of 392. This means that 1 mole of Mohr's salt weighs 392 grams.
Equivalent Mass of Mohr's Salt
The equivalent mass of a substance is the mass which combines with or displaces 1.008 grams of hydrogen or 8.0 grams of oxygen. In the case of Mohr's salt, the equivalent mass is equal to its formula mass, which is 392.
Iron Oxidation by KMnO4 in Acid Medium
When iron in Mohr's salt is oxidized by KMnO4 in an acid medium, the following reaction occurs:
5Fe^2+ + MnO4^- + 8H^+ → 5Fe^3+ + Mn^2+ + 4H2O
Calculation of Equivalent Mass
In this reaction, 1 mole of iron (Fe) reacts with 1 mole of KMnO4. Since the formula mass of Fe is 56, and the molar ratio of Fe to KMnO4 is 1:1, the equivalent mass of Fe in this reaction is 56. Therefore, the equivalent mass of Mohr's salt, which contains iron, is equal to the formula mass of Mohr's salt, which is 392.
Therefore, the correct answer is option 'A' (392).
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
|
Explore Courses for NEET exam
|
|
Top Courses for NEETView all
The formula mass of Mohr's salt is 392. The iron present in it is oxidised by KMnO4 in acid medium. The equivalent mass of Mohr's salt isa)392b)31.6c)278d)156Correct answer is option 'A'. Can you explain this answer?
Question Description
The formula mass of Mohr's salt is 392. The iron present in it is oxidised by KMnO4 in acid medium. The equivalent mass of Mohr's salt isa)392b)31.6c)278d)156Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The formula mass of Mohr's salt is 392. The iron present in it is oxidised by KMnO4 in acid medium. The equivalent mass of Mohr's salt isa)392b)31.6c)278d)156Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The formula mass of Mohr's salt is 392. The iron present in it is oxidised by KMnO4 in acid medium. The equivalent mass of Mohr's salt isa)392b)31.6c)278d)156Correct answer is option 'A'. Can you explain this answer?.
The formula mass of Mohr's salt is 392. The iron present in it is oxidised by KMnO4 in acid medium. The equivalent mass of Mohr's salt isa)392b)31.6c)278d)156Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The formula mass of Mohr's salt is 392. The iron present in it is oxidised by KMnO4 in acid medium. The equivalent mass of Mohr's salt isa)392b)31.6c)278d)156Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The formula mass of Mohr's salt is 392. The iron present in it is oxidised by KMnO4 in acid medium. The equivalent mass of Mohr's salt isa)392b)31.6c)278d)156Correct answer is option 'A'. Can you explain this answer?.
Solutions for The formula mass of Mohr's salt is 392. The iron present in it is oxidised by KMnO4 in acid medium. The equivalent mass of Mohr's salt isa)392b)31.6c)278d)156Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of The formula mass of Mohr's salt is 392. The iron present in it is oxidised by KMnO4 in acid medium. The equivalent mass of Mohr's salt isa)392b)31.6c)278d)156Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The formula mass of Mohr's salt is 392. The iron present in it is oxidised by KMnO4 in acid medium. The equivalent mass of Mohr's salt isa)392b)31.6c)278d)156Correct answer is option 'A'. Can you explain this answer?, a detailed solution for The formula mass of Mohr's salt is 392. The iron present in it is oxidised by KMnO4 in acid medium. The equivalent mass of Mohr's salt isa)392b)31.6c)278d)156Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of The formula mass of Mohr's salt is 392. The iron present in it is oxidised by KMnO4 in acid medium. The equivalent mass of Mohr's salt isa)392b)31.6c)278d)156Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The formula mass of Mohr's salt is 392. The iron present in it is oxidised by KMnO4 in acid medium. The equivalent mass of Mohr's salt isa)392b)31.6c)278d)156Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice NEET tests.
|
|
Explore Courses for NEET 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