COMEDK 2022 | Redox Reactions Question 21 | Chemistry

KMnO$$_4$$ acts as an oxidising agent in acidic medium. The number of moles of KMnO$$_4$$ that will be required to react with one mole of oxalate ions (to form CO$$_2$$) in acidic solution is

$$\frac{2}{5}$$

$$\frac{5}{2}$$

$$\frac{5}{4}$$

COMEDK 2022

MCQ (Single Correct Answer)

-0

Which of the following gas readily de-colourises the acidified KMnO$$_4$$ solution?

CO$$_2$$

SO$$_2$$

P$$_2$$O$$_5$$

NO$$_2$$

COMEDK 2021

MCQ (Single Correct Answer)

-0

The oxidation number of Cr in CrO$$_5$$ which has the following structure, is

COMEDK 2021 Chemistry - Redox Reactions Question 25 English

COMEDK 2021

MCQ (Single Correct Answer)

-0

For decolourisation of 1 mole of KMnO$$_4$$, the moles of H$$_2$$O$$_2$$ required is

$$\frac{1}{2}$$

$$\frac{3}{2}$$

$$\frac{5}{2}$$

$$\frac{7}{2}$$

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