JEE Main 2023 (Online) 15th April Morning Shift | d and f Block Elements Question 36 | Chemistry

The total change in the oxidation state of manganese involved in the reaction of $\mathrm{KMnO}_{4}$ and potassium iodide in the acidic medium is ____________.

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JEE Main 2023 (Online) 1st February Evening Shift

Numerical

-1

Among following compounds, the number of those present in copper matte is ___________.

A. $$\mathrm{CuCO_{3}}$$

B. $$\mathrm{Cu_{2}S}$$

C. $$\mathrm{Cu_{2}O}$$

D. $$\mathrm{FeO}$$

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JEE Main 2023 (Online) 30th January Morning Shift

Numerical

-1

The number of electrons involved in the reduction of permanganate to manganese dioxide in acidic medium is _____________.

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