Answer the following questions:
A tapping vessel opens in a tank like container that is tapering on the lower side .The tank has an outlet for water on the upper side a water inlet on the lower side. Finely ground ore is released in the tank. A forceful jet of water is introduced in the tank from lower side and gangue particles and pure ore are separated by this method.
Draw labelled diagram of this method.

Answer the following questions: A tapping vessel opens in a tank like container that is tapering on the lower side .The tank has an outlet for water on the upper side a water inlet on the lower side. Finely ground ore is released in the tank. A forceful jet of water is introduced in the tank from lower side and gangue particles and pure ore are separated by this method. The above description is of which gravitation separation method ?

Answer the following questions: Write the five methods of concentration of ores.

Answer the following questions: On which side of the period are the metals? Left or right ?

Answer the following questions : Why is potassium permanganate used during cleaning water tanks ?

Answer the following questions Water in a swimming pool or water tank appears shallower than its depth . Why ?

Answer the following questions: Draw an electron dot structure of the following molecules: Water

Answer the question in short: The side of a lantern Is provided with holes on the lower side.

Answer the following questions: What is the difference in the pH of pure water and rain water? If it is so, explain.

Answer the following questions: What are the different methods used for removing gangue from ores ?

Answer the following questions: State two methods of concentration of ores in which the heavy particles of ores can be separated from the light gangue particles by the gravitational method .