During the extraction of gold the following reactions take place
Au + CN– + H2O $\xrightarrow{O_2}$ [X]
[X] + Zn → [Y] + Au
X and Y are respectively
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Which of the following is a Ferrous alloy |
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Identify the incorrect statement among the following |
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Which of the following pairs of elements cannot form an alloy? |
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Which of the following types of metals form the most efficient catalysts? |
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Which one of the following exists in the oxidation state other than +3? |
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During the process of electrolytic refining of copper, some metals present as impurity settle as ‘anode mud’. These are |
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Which of the following arrangements does not represent the correct order of the property stated against it? |
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Which one of the following sets correctly represents the increase in the paramagnetic property of the ion? |
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Which of the following statements about the interstitial compounds is incorrect? |
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In blast furnace, iron oxide is reduced by |
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