Neco 2024 Chemistry Question 41
Practice objective / multiple choice question 41 from the 2024 Neco Chemistry examination.
A 250 g sample of an ore contains 12\% by mass of metal\,X. After roasting, the mass of the metal\,X oxide obtained is 70.0 g. The theoretical mass of metal\,X oxide if all the metal were converted is 80.0 g.\n\n(a) Calculate the percentage efficiency of the roasting step.\n(b) The oxide is then reduced to the metal with a 92\% efficient reduction. Determine the mass of pure metal\,X obtained.\n(c) If the market price of metal\,X is \u20A6150 per gram, calculate the total revenue from the metal obtained.
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About This Question
This is Neco 2024 Chemistry Question 41. It is one of the objective questions from the 2024 Neco Chemistry examination.
Difficulty level: Hard .
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