Describe the experimental procedure and give the calculations involved in the estimation of potassium permanganate present in one `dm^(3)` of its solution using standard oxalic acid solution. Give the equation for the redox reaction.

Describe experiment to determine the mass of KMnO_4 present in 1dm^3 of the solution using standard ferrous ammonium sulphate solution.

What will happen if a solution of sodium hydro carbonate is heated ? Give the equation of the reaction involved.

Calculate the normality of oxalic acid solutions containing 0.895 g crystals in 250 cm^(3) of its solutions.

Name the products obtained when benzaldehyde is made to undergo Cannizzaro's reaction using a concentrated solution of potassium hydroxide. Give the equation of the reaction.

A compound X is formed by the reaction of a carboxylic acid C_2H_4O_2 and an alcohol in the presence of a few drops of sulphuric acid. The alcohol on oxidation with alkaline potassium permanganate followed by acidification gives the same carboxylic acid as used in this reaction. Give the names and structures of the a) carboxylic acid b alcohol and c) the compound X. Also write the reaction.

For the estimation of potassium permangnate using standard ferrous ammonium sulphate solution: (i) Write the chemical equation for the reaction involved. (ii) Write the equivalent mass of potassium permanganate. (iii) Name the indicator used. (iv) Mention the colour change at the end point.

Give the reaction involved during the extraction of zinc from its ore by a. Roasting of zinc or b. Calcination of zinc ore OR How are roasting and calcination used in the extraction of zinc? Explain with the help of chemical equations. After these processes is reduction necessary to obtain zinc? Why

The colour of copper sulphate solution changes when an iron nail is dipped in it. State the reason giving chemical equation for the reaction involved.

Give equation to calculate molar mass of a solute using relative lowering of vapoure pressure.