Decribe, how potassium dichromate is prepared from chromite. Write the chemical equations for the reactions involved.

Describe how potassium permanganate is prepared from pyrolusite. Write the chemical equations for the reactions involved.

Write the chemical equation for Hunsdiecker reaction

How is nitrogen prepared in the laboratory? Write the chemical equations of the reactions involved.

How is potassium dichromate prepared from a sample of chromite ore ? Give balanced equations for the chemical reactions involved.

How can you convert potassium dichromate into chromyl chloride ? Give equations for the reactions involved.

Write chemical equation to prepare bleaching powder.

Write one chemical reactions for the preparation of D_(2)O_(2) .

How can the orthonitrochlorobenzene be obtained from benzene? Write chemical equation for the reaction involved.

Describe the preparation of potassium permanganate. How does the acidified permanganate solution react with oxalic acid? Write the ionic equation for the reaction. OR Describe the oxidising action of potassium dischromate and write the ionic equations for its reaction with (i) an iodide (ii) H_(2)S .

Potassium dichromate reacts with hydrochloric acid to produce potassium chloride, chromium chloride, water and chlorine. Write the skeletal equation of the reaction and balance it.