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One or More than One Options Correct Type
Direction : This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.
Q.
For the metallurgical process of which of the calcined ore can be reduced by carbon?
- a)Haemat
- b)Calamine
- c)Iron pyrites
- d)Zincite
Correct answer is option 'A,D'. Can you explain this answer?
Verified Answer
One or More than One Options Correct TypeDirection : This section cont...
Calcined ore of haematite (Fe2O3) and zincite (ZnO) can be reduced by carbon.
Most Upvoted Answer
One or More than One Options Correct TypeDirection : This section cont...
Explanation:
To understand which calcined ores can be reduced by carbon during the metallurgical process, let's analyze each option:
a) Haemat:
Haematite is an iron ore that can be reduced by carbon. The equation for the reduction of haematite (Fe2O3) by carbon monoxide (CO) is as follows:
Fe2O3 + 3CO → 2Fe + 3CO2
b) Calamine:
Calamine is a zinc ore that cannot be reduced by carbon. Zinc oxide (ZnO), which is present in calamine, cannot be reduced by carbon. Therefore, option (b) is incorrect.
c) Iron pyrites:
Iron pyrites (FeS2) is a sulfide ore and cannot be directly reduced by carbon. It requires a two-step process for the extraction of iron. In the first step, iron pyrites is roasted to convert it into iron(II) oxide (FeO) and sulfur dioxide (SO2). In the second step, the obtained iron(II) oxide is reduced by carbon to obtain iron. Therefore, option (c) is incorrect.
d) Zincite:
Zincite is a zinc ore that can be reduced by carbon. The equation for the reduction of zincite (ZnO) by carbon monoxide (CO) is as follows:
ZnO + CO → Zn + CO2
Summary:
Based on the above analysis, the correct options are (a) Haemat and (d) Zincite. Haematite and zincite are the calcined ores that can be reduced by carbon during the metallurgical process.
To understand which calcined ores can be reduced by carbon during the metallurgical process, let's analyze each option:
a) Haemat:
Haematite is an iron ore that can be reduced by carbon. The equation for the reduction of haematite (Fe2O3) by carbon monoxide (CO) is as follows:
Fe2O3 + 3CO → 2Fe + 3CO2
b) Calamine:
Calamine is a zinc ore that cannot be reduced by carbon. Zinc oxide (ZnO), which is present in calamine, cannot be reduced by carbon. Therefore, option (b) is incorrect.
c) Iron pyrites:
Iron pyrites (FeS2) is a sulfide ore and cannot be directly reduced by carbon. It requires a two-step process for the extraction of iron. In the first step, iron pyrites is roasted to convert it into iron(II) oxide (FeO) and sulfur dioxide (SO2). In the second step, the obtained iron(II) oxide is reduced by carbon to obtain iron. Therefore, option (c) is incorrect.
d) Zincite:
Zincite is a zinc ore that can be reduced by carbon. The equation for the reduction of zincite (ZnO) by carbon monoxide (CO) is as follows:
ZnO + CO → Zn + CO2
Summary:
Based on the above analysis, the correct options are (a) Haemat and (d) Zincite. Haematite and zincite are the calcined ores that can be reduced by carbon during the metallurgical process.
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One or More than One Options Correct TypeDirection : This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.For the metallurgical process of which of the calcined ore can be reduced by carbon?a)Haematb)Calaminec)Iron pyritesd)ZinciteCorrect answer is option 'A,D'. 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 One or More than One Options Correct TypeDirection : This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.For the metallurgical process of which of the calcined ore can be reduced by carbon?a)Haematb)Calaminec)Iron pyritesd)ZinciteCorrect answer is option 'A,D'. 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 One or More than One Options Correct TypeDirection : This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.For the metallurgical process of which of the calcined ore can be reduced by carbon?a)Haematb)Calaminec)Iron pyritesd)ZinciteCorrect answer is option 'A,D'. Can you explain this answer?.
Solutions for One or More than One Options Correct TypeDirection : This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.For the metallurgical process of which of the calcined ore can be reduced by carbon?a)Haematb)Calaminec)Iron pyritesd)ZinciteCorrect answer is option 'A,D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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