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Heating mixture of Cu2O and Cu2S will give

Cu + SO2
Cu + SO3
CuO + CuS
Cu2SO3
Additional Questions

KMnO4 can be prepared from K2MnO4 as per the reaction:

3MnO2–
4
+ H2O ⇌ 2MnO
4
+ MnO2 + 4OH

The reaction can go to completion by removing OH ions by adding

Answer

The correct order of $\text{E}_{\text{M}^{2+}/\text{M}}^o$ values with negative sign for the four successive elements Cr, Mn, Fe and Co is

Answer

Extraction for zinc blende is achieved by

Answer

Gold is extracted by hydro metallurgical process, based on its property

Answer

Which pair of compounds is expected to show similar colour in aqueous medium?

Answer

Least paramagnetic property is shown by

Answer

The oxidation number of Mn in the product of alkaline oxidative fusion of MnO2 is

Answer

The spin only magnetic moment of Fe2+ ion (in BM) is approximately

Answer

Identify the reaction that does not take place in a blast furnace.

Answer

Formation of coloured solution is possible when metal ion in the compound contains

Answer
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