Write the steps you would use to making tea. Use the words solution , Solvents ,Solute, dissolve ,soluble , insoluble , filtrate and residue ?

(a) What is the action of litmus on: (i) Dry ammonia gas (ii) Solution of ammonia gas in water (b) State the observations you would make on adding sodium hydroxide to aqueous solution of : (i) Ferrous sulphate (ii) Aluminium chloride Give balanced chemical equations.

(i) You have three unlabelled test-tubes containing ethanol, ethanoic acid and soap solution. Explain the method you would use to identify the compounds in different test tubes by chemical tests using litmus paper and sodium metal. (ii) Give the reason of formation of scum when soaps are used with hard water.

A metal is treated with dilute sulphuric acid. The gas evolved is collected by the method shown in the figure: (i) Name the gas (ii) Is the gas soluble or insoluble in water? (iii) Is the gas lighter or heavier than air? (iv) How will you test the gas (v) IF the metal used above in zinc then write the chemical equation for the evolution of gas (vi) Write one industrial use of the gas evolved.

A student prepared solution of (i) acid and (ii) base in two separate beakers but forgot to table the solution and litmus paper is not available in the lab. Since both solution are colourless how will you distinguish between there using (a) phenolphthalein (b) methyl orange.

What would you observe when zinc is added to a solution of iron (II) sulphate ? Write the chemical reaction that take place

Write two observations that you will make when an iron nail is kept in an aqueous solution of copper sulphate. Write the chemical equations for this reactions.