Colour of ferrous salts.

Give one word for the following : Colour of ferric salts

Aliphatic ethers are purified by shaking with a soluting of ferrous salt to remove ……….. which are formed on prolonged standing in contact with water.

A student perfomed the experiment of heating ferrous sulphate crystals in a boiling tube. He smelt fumes of a pungent gas and saw colours of ferrous sulphate disappear. (i) Write the chemical formula of the pungent gas. (ii) Why does the colour of crystal disappear ? (iii) Identify the nature of this chemical reaction.

2g of ferrous sulphate crystals are heated in a boiling tube. (i) State the colour of ferrous sulphate crystals both before heating and after heating. (ii) Name the gases produced during heating. (iii) Write the chemical equation for the reaction.

In comparison of ferrous salts, ferric salts are:

Explain the method of preparation of sodium dichromate from chromite ore . Give the equation representing oxidation of ferrous salts by dichromate ion.

If a small Cu rod is placed in an aqueous solution of ferrous salt, then which of the following will be observed? ( E_((Cu^(2+)) /(Cu))^0 = -0.34 V , E_((Fe^(2+)) /(Fe))^0 = -0.44 V )

If a spoon of copper metal is placed in a solution of ferrous sulphate .

Give a chemical test to distinguish between the following: Ferric salt and ferrous salt.

Fill in the blanks with appropriate words : Ferrous salts on oxidation form .. .. . .. . . . . . . Salts.