Neco Model Questions Vol1 2018 Chemistry Question 13

Practice objective / multiple choice question 13 from the 2018 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2018 Chemistry Objective / Multiple Choice Hard Difficulty
Question 13 NECO_MODEL_QUESTIONS_VOL1 • 2018 • CHEMISTRY • objective

A 10.0 g ore sample contains 60 % by mass of \( \text{ZnS} \) and 40 % of \( \text{Fe}_2\text{O}_3 \). The ore is reduced with excess carbon at 1000 °C via \( \text{ZnS} + \text{C} \rightarrow \text{Zn} + \text{CS}_2 \) and \( \text{Fe}_2\text{O}_3 + 3\text{C} \rightarrow 2\text{Fe} + 3\text{CO} \). Calculate the total mass of metal (Zn + Fe) obtained.

Answer Options

A. 7.21 g
Correct Answer B. 6.83 g
C. 8.34 g
D. 5.97 g
Correct Answer
B
Correct Option:
6.83 g

About This Question

This is Neco Model Questions Vol1 2018 Chemistry Question 13. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Hard .

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