What do you see when sulphur dioxide is bubbled through an acidified potassium dichromate solution ?

Name the compound which is responsible for the green coloration when sulphur dioxide is passed through acidified potassium dichromate solution.

Sulphur dioxide turns acidified potassium dichromate ............... .

A gas which turns acidified potassium dichromate green.

What do you observe when : SO_2 is passed through acidified KMnO_4

What do you observe : Sulphur dioxide is passed through acidified K_(2)Cr_(2)O_(7) solution.

What do you observe when : Burning sulphur.

When nitrogen dioxide gas is bubbled through water it produces

Salts A, B, C, D and E undergo reactions (i) to (v) respectively. Identify the anion present in these salts on the basis of these reactions. Tabulate your answers in the format given below: (i) When silver nitrate solution is added to a solution of A, a white precipitate, insoluble in dilute nitric acid, is formed. (ii) Addition of dilute hydrochloric acid to B produces a gas which turns lead acetate paper black. (iii) When a freshly prepared solution of ferrous sulphate is added to a solution of C and concentrated sulphuric acid is gently poured from the side of the test-tube, a brown ring is formed. (iv) When dilute sulphuric acid is added to D a gas is produced which turns acidified potassium dichromate solution from orange to green. (v) Addition of dilute hydrochloric acid to E produces an effervescence. The gas produced turns lime water milky but does not affect acidified potassium dichromate solution.

Give balanced chemical equation for the reaction when potassium iodide is treated with acidified potassium permanganate solution.

Product obtained when cyclohexene is oxidised with acidic potassium dichromate will be