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Which do not decolourise KMnO4 aqueous solution?

C2O
4
HSO
3
CO2–
3
SO2–
3
Additional Questions

(NH4)2Cr2O7 on heating gives a gas which is also given by

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Knowing that the chemistry of lanthanoids (Ln) is dominated by its +3 oxidation state, which of the following statements is incorrect?

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Which of the statements is not true?

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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

Answer
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