State the property of sulphur dioxide which causes potassium permanganate to change its colour from purple to colourless.

Select from the list the gas that matches the description given in each case: [ammonia, ethane, hydrogen chloride, hydrogen sulphide, ethyne] This gas when treated with potassium permanganate changes its colour from pink to yellow

Property of sulphur dioxide due to which it is used for refining of sugar.

Which property of sulphuric acid accounts for its use as a dehydrating agent ?

In acidic medium which of the following does not change its colour:

When a beaker of water is heated with a bit of potassium permanganate at the bottom you can see purple coloured water move up and down in circular paths. Why?

To the aqueous solution of the salt acidified potassium permanganate is added and its colour is discharged. It indicates the absence of

(a). Assertion (A) is true, Reason (R) is also true, Reason (R) is the correct explanation for assertion (A). (b). Assertion (A) is true, Reason (R) is true, Reason (R) is not the correct explanation for Assertion (A). (c). Assertion (A) is true, Reason (R) is false. (d). Assertion (A) is false, Reason (R) is true. Q. Assertion (A): to a solution of potassium chromate, if a strong acid is added, it changes its colour from yellow to orange. Reason (R): The colour change is due to the change in oxidation state of potassium chromate.

Which one of the following animals can change its body colour?

State your observation for the following cases : Paper soaked in potassium permanganate solution is introduced into a as jar of sulphur dioxide.

Give balanced chemical equation for the following reaction: (i) Potassium iodide is treated with acidified potassium permanganate solution. (ii) Sodium dichromate with calculate amount of potassium chloride. (iii) Sulphur dioxide treated with acidified potassium permanganate.