Chemistry practical class 12 experiment 2 quantitative estimation answers and solutions
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Chemistry practical class 12 experiment
Chemistry practical class 12 experiment 2 quantitative estimation answers and solutions
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12th std Chemistry Practical book answers Experiment no .2 answers HSC MH Board Practical answers
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Experiment no.2 |12th chemistry practical book Answer and solution with MCQ
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Experiment No.2 Class 12th Chemistry Practical Book Answer and solutions Maharashtra
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Class 12
Chemistry practical
Experiment no.2
Answers
By : solutions made easy
Note : write observations as experiments performed in your collage.
MCQ
1. The indicator used in redox titration is ..........
A. Phenolphthalein b. Methyl orange
C. Methylene blue
d. Potassium permanganate
Answer : d. Potassium permanganate
2. Select the titrant used in redox titration
A. Oxalic acid b. F. A. S
C. KMnO4 d. H2SO4
Answer : A. Oxalic acid
3. The oxidation state of Mn in KMnO4 in redox titration before titration is +7, the The oxidation state of Mn after completion of titration is ............
A +2 b. +3
C. +4 d. +7
Answer : A +2
4. The oxidation state of Iron in mohr's salt is +2 ,the oxidation state of iron after completion of titration is ..........
Answer
A. +1 b. +2
C. +3 d. +4
Answer : C. +3
5. The role of Mn2+ ion during oxidation reduction titration of KMnO4 by oxalic acid is ..............
A. Catalyst b. Reductant
C. Oxidant d. Reactant
Answer: C. Oxidant
Short Answer Questions
1. What specific name is given to the permanganatic titration?
Answer
The specific name given to the permanganatic titration is redox titration.
2. Why heating is not required in F. A. S and potassium permanganatic titration?
Answer
In this titration the rate of reaction is high at room temperature therefore heating is not required.
3. Why diluted sulphuric acid is added while preparing a standard solution of mohr's salt?
Answer
Dilute sulphuric acid is added while preparing because to prevent hydrolysis of ferrous sulphate.
4. Calculate the molar mass of mohr's salt
(Fe=56, S=32, N=14, H=1, O=16)
Answer
Molecular formula: FeSO4. (NH4)2SO4.6H2O
Molecular weight of mohr's salt Is 392g/Mol
5. Calculate amount of F. A. S required to prepare M/20 standard solutions of F. A. S .
Answer
1.96 g of F. A. S is required to prepare M/20 standard solutions of F. A. S.
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Class 12 chemistry practicals: Class 12 chemistry practicals
Class 12 physics practical: Class 12 physics practical
Class 12 biology practical: Class 12 biology practical
chemistry practical class 12 experiment 2
12th class chemistry practical experiment 2 answers
#physicspractical #Activity #Practical
Experiment No.2 Class 12th Chemistry Practical Book Answer and solutions Maharashtra Board HSC
12th std Chemistry Practical book answers Experiment no .2 answers HSC MH Board Practical answers
MAHARASHTRA
Experiment no.2 |12th chemistry practical book Answer and solution with MCQ
Description
Experiment No.2 Class 12th Chemistry Practical Book Answer and solutions Maharashtra
Experiment No.2 Class 12th Chemistry Practical Book Answer and solutions Maharashtra BoardPhysics practical book 12th Physics Practical Book Answers Maharashtra Board Practical Book Answers 12th physics practical Answer and solution practical Answer Experiment 12th biology practical | Answer & Solutions 12th chemistry practical book solve 12th physics practical book solutions
I hope so it will helpful for you,
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12th new syllabus 2022 maharashtra biology class 11
physics practical
class 12th chemistry practical up board
class 12th maharashtra board new syllabus class 12th practical physics
Class 12
Chemistry practical
Experiment no.2
Answers
By : solutions made easy
Note : write observations as experiments performed in your collage.
MCQ
1. The indicator used in redox titration is ..........
A. Phenolphthalein b. Methyl orange
C. Methylene blue
d. Potassium permanganate
Answer : d. Potassium permanganate
2. Select the titrant used in redox titration
A. Oxalic acid b. F. A. S
C. KMnO4 d. H2SO4
Answer : A. Oxalic acid
3. The oxidation state of Mn in KMnO4 in redox titration before titration is +7, the The oxidation state of Mn after completion of titration is ............
A +2 b. +3
C. +4 d. +7
Answer : A +2
4. The oxidation state of Iron in mohr's salt is +2 ,the oxidation state of iron after completion of titration is ..........
Answer
A. +1 b. +2
C. +3 d. +4
Answer : C. +3
5. The role of Mn2+ ion during oxidation reduction titration of KMnO4 by oxalic acid is ..............
A. Catalyst b. Reductant
C. Oxidant d. Reactant
Answer: C. Oxidant
Short Answer Questions
1. What specific name is given to the permanganatic titration?
Answer
The specific name given to the permanganatic titration is redox titration.
2. Why heating is not required in F. A. S and potassium permanganatic titration?
Answer
In this titration the rate of reaction is high at room temperature therefore heating is not required.
3. Why diluted sulphuric acid is added while preparing a standard solution of mohr's salt?
Answer
Dilute sulphuric acid is added while preparing because to prevent hydrolysis of ferrous sulphate.
4. Calculate the molar mass of mohr's salt
(Fe=56, S=32, N=14, H=1, O=16)
Answer
Molecular formula: FeSO4. (NH4)2SO4.6H2O
Molecular weight of mohr's salt Is 392g/Mol
5. Calculate amount of F. A. S required to prepare M/20 standard solutions of F. A. S .
Answer
1.96 g of F. A. S is required to prepare M/20 standard solutions of F. A. S.
Thanks for watching
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Practicals @BYJU'S @Extramarks @Physics Wallah - Alakh Pandey @A2 Motivation by Arvind Arora @Science and fun @BYJU'S IAS @BYJU'S Exam Prep : Teaching @solutions made easy @CLASSMATES MEDIA @Master Vaibhav Hire @Success Tips by Kingmaker @YouTube @Instagram @Zomato @Samsung India
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