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Question

Which statement is not correct?

Solution

Correct option is

Potassium permanganate is a weaker oxidizing substance than potassium dichromate

In acidic medium, KMnO4 gives 5 oxygen while, acidic K2Cr2O7 gives 3 oxygen.

Testing

SIMILAR QUESTIONS

Q1

When metallic copper comes in contact with moisture, a green powder/pasty coating can be seen over it. This is chemically known as

Q2

   

Q3

One of the product formed when K2Cr2O7 reacts with conc H2SO4 in cold is

Q4

Copper sulphate solution reacts with KCN to give

Q5

Which of the following is not oxidized by O3?

Q6

Which of the following compounds volatises on heating?

Q7

Acidified solution of chromic acid on treatment with hydrogen peroxide yields

Q8

Prussian blue is due to formation of

Q9

On adding excess of NH3 solution CuSO4 solution, the dark blue colour is due to

Q10

Yellow mercury (II) oxide is obtained when