Gravity separation method is based upon:

Important Questions on General Principles and Processes of Isolation of Metals (Metallurgy)

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IMPORTANT

Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-4>Q 5

In the froth floatation process for the purification of minerals the particles float because:

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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-4>Q 6

An ore of tin containing $\mathrm{F}\mathrm{e}\mathrm{C}\mathrm{r}{\mathrm{O}}_4$ is concentrated by

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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-4>Q 7

Process of heating ore in air to remove sulphur is:

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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-4>Q 8

In roasting:

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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-4>Q 9

Which one of the following reactions is an example for calcination process?

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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-4>Q 10

Roasting is carried out in case of:

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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-4>Q 11

Slag is a product of:

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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-4>Q 12

An ore after levigation is found to have basic purities. Which of the following can be used as a flux during smelting?