Which of the Following Is an Example of Smelting

question 32

Multiple Choice

Which of the following is an example of smelting?

• A) 2 PbS(s) + 3 O₂(g) 2 PbO(s) + 2 SO₂(g)
• B) 4 PbCO₃(s) + O₂(g) 2 Pb₂O₃(s) + 4 CO₂(g)
• C) PbCO₃(s) + SiO₂(s) PbSiO₃(l) + CO₂(g)
• D) PbCO₃(s) PbO(s) + CO₂(g)
• E) ZnO(s) + CO(g) Zn(l) + CO₂(g)

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Definitions:

Prices

The sum of money needed to buy goods or services.

Synergy

Synergy occurs when the combined effect of a group or system of entities is greater than the sum of their individual effects, often resulting in increased efficiency or productivity.

Profitable

refers to a financial state where income exceeds expenses, leading to a positive net outcome.

Discounted Future Profits

The present value of the expected future earnings of a company, discounted at an appropriate rate to account for risk and time.