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H2O2 restores the colour of old lead paintings, blackened by the action of H2S gas, by:
- a)converting PbO2 to Pb
- b)oxidising PbS to PbSO4
- c)converting PbCO3 to Pb
- d)oxidising PbSO3 to PbSO4
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
H2O2 restores the colour of old lead paintings, blackened by the actio...
PbS + 4H2O2 → PbSO4 + 4H2O
Most Upvoted Answer
H2O2 restores the colour of old lead paintings, blackened by the actio...
Explanation:
Lead Paintings:
Lead paintings often get blackened due to the action of hydrogen sulfide (H2S) gas, which forms lead sulfide (PbS) on the surface of the painting.
Restoration Process:
To restore the color of old lead paintings, hydrogen peroxide (H2O2) can be used. The H2O2 helps in oxidizing the lead sulfide (PbS) back to lead sulfate (PbSO4), which restores the original color of the painting.
Conversion Process:
The oxidation reaction that takes place can be represented as follows:
PbS + 4H2O2 -> PbSO4 + 4H2O
Result:
By oxidizing PbS to PbSO4, the blackened layer of lead sulfide is removed, and the original color of the painting is restored.
Therefore, option 'B' - oxidizing PbS to PbSO4 is the correct answer as hydrogen peroxide helps in restoring the color of old lead paintings blackened by the action of H2S gas.
Lead Paintings:
Lead paintings often get blackened due to the action of hydrogen sulfide (H2S) gas, which forms lead sulfide (PbS) on the surface of the painting.
Restoration Process:
To restore the color of old lead paintings, hydrogen peroxide (H2O2) can be used. The H2O2 helps in oxidizing the lead sulfide (PbS) back to lead sulfate (PbSO4), which restores the original color of the painting.
Conversion Process:
The oxidation reaction that takes place can be represented as follows:
PbS + 4H2O2 -> PbSO4 + 4H2O
Result:
By oxidizing PbS to PbSO4, the blackened layer of lead sulfide is removed, and the original color of the painting is restored.
Therefore, option 'B' - oxidizing PbS to PbSO4 is the correct answer as hydrogen peroxide helps in restoring the color of old lead paintings blackened by the action of H2S gas.
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Question Description
H2O2 restores the colour of old lead paintings, blackened by the action of H2S gas, by: a)converting PbO2 to Pb b)oxidising PbS to PbSO4 c)converting PbCO3 to Pb d)oxidising PbSO3 to PbSO4Correct answer is option 'B'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about H2O2 restores the colour of old lead paintings, blackened by the action of H2S gas, by: a)converting PbO2 to Pb b)oxidising PbS to PbSO4 c)converting PbCO3 to Pb d)oxidising PbSO3 to PbSO4Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for H2O2 restores the colour of old lead paintings, blackened by the action of H2S gas, by: a)converting PbO2 to Pb b)oxidising PbS to PbSO4 c)converting PbCO3 to Pb d)oxidising PbSO3 to PbSO4Correct answer is option 'B'. Can you explain this answer?.
H2O2 restores the colour of old lead paintings, blackened by the action of H2S gas, by: a)converting PbO2 to Pb b)oxidising PbS to PbSO4 c)converting PbCO3 to Pb d)oxidising PbSO3 to PbSO4Correct answer is option 'B'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about H2O2 restores the colour of old lead paintings, blackened by the action of H2S gas, by: a)converting PbO2 to Pb b)oxidising PbS to PbSO4 c)converting PbCO3 to Pb d)oxidising PbSO3 to PbSO4Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for H2O2 restores the colour of old lead paintings, blackened by the action of H2S gas, by: a)converting PbO2 to Pb b)oxidising PbS to PbSO4 c)converting PbCO3 to Pb d)oxidising PbSO3 to PbSO4Correct answer is option 'B'. Can you explain this answer?.
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H2O2 restores the colour of old lead paintings, blackened by the action of H2S gas, by: a)converting PbO2 to Pb b)oxidising PbS to PbSO4 c)converting PbCO3 to Pb d)oxidising PbSO3 to PbSO4Correct answer is option 'B'. Can you explain this answer?, a detailed solution for H2O2 restores the colour of old lead paintings, blackened by the action of H2S gas, by: a)converting PbO2 to Pb b)oxidising PbS to PbSO4 c)converting PbCO3 to Pb d)oxidising PbSO3 to PbSO4Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of H2O2 restores the colour of old lead paintings, blackened by the action of H2S gas, by: a)converting PbO2 to Pb b)oxidising PbS to PbSO4 c)converting PbCO3 to Pb d)oxidising PbSO3 to PbSO4Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
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