Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-2>Q 43

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Which of the following process(es) occur(s) during the extraction of copper from chalcopyrites?

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

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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-2>Q 45

Which of the following statement(s) is (are) incorrect ?

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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-2>Q 47

Liquation process may be applied for the purification of:

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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-2>Q 51

The metal ores $[X]$ and $[Y]$ are respectively:

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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-2>Q 52

Which of the following statements is correct about $[Y] ?$

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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-2>Q 55

To make the following reduction process spontaneous, temperature should be:

$ZnO + C ⟶ Zn + CO$

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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-2>Q 56

Which of the following statement is true?

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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-2>Q 58

Cold concentrated

{HNO}_{3}

will completely dissolve:

(i)

Pb

(ii)

{Pb}_{3} O_{4}

(iii)

Fe

(iv)

Sn

(v)

Mg

(vi)

MgO

(vii)

Hg

(viii)

Au

(ix)

Ag

(x)

Pt

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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-2>Q 59

Cold diluted

H_{2} {SO}_{4}

will completely dissolve:

(i)

Pb

(ii)

{Fe}_{3} O_{4}

(iii)

Fe

(iv)

Cu

(v)

Mg

(vi)

MgO

(vii)

{CoCO}_{3}

(viii)

{CuCO}_{3}

(ix)

{SrCO}_{3}