Which of the following types of metals form the most efficient catalysts?
alkali metals
alkaline earth metals
transition metals
all the above
Additional Questions
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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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Which one of the following ions exhibits colour in aqueous solution |
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Cyanide process is used for extraction of |
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Among the following, the coloured compound is |
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In the electrolytic refining of Zinc, ______. |
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