Write equations for the reactions of
(i) iron with steam
(ii) calcium and potassium with water

The reaction of iron with steam is reversible. (T/F)

(a) Why does calcium start floating when added to water? (b) Most of the metals do not give hydrogen while reacting with nitric acid. Why? (c ) Write equation for the reaction of iron with steam. Name the compound of iron obtained.

Write the reaction of steam with red hot iron.

Write chemical equations for the following reactions: (i) Calcium metal reacts with water. (ii) Cinnabar is heated in the presence of air. (iii) Manganese dioxide is heated with aluminium powder. (b) What are alloys? List two properties of alloys.

Write the equations for the following reactions : (i) dilute sulphuric acid and barium chloride (ii) dilute sulphuric acid and sodium sulphide (iii) sulphur dioxide and water.

Write equations for the reaction of dil HCI with each of the following - I ] iron , ii] sodium bicarbonate , iii] iron[II] sulphide , iv ] sodium sulphite.

Write the balanced equations for the reactions when (i). Potassium permanganate interacts with manganese dioxide in the presence of potassium hydroxide. (ii). Potassium ferrocyanide is heated with concentrated sulphuric acid.

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 .

Write balanced chemical equations for the Action of water on calcium carbide.

Write balanced equations for the following reactions Ozone and alkaline potassium iodide.