Take water in 4 different beakers and add a small piece of sodium,lead,iron and copper in each: Which solution will turn pink on adding phenolphthalein? Why?

Take water in 4 different beakers and add a small piece of sodium,lead,iron and copper in each: In which all solutions gas bubbles will be formed? Which gas is formed?

Take water in 4 different beakers and add a small piece of sodium,lead,iron and copper in each: Write the chemical equation between this metal and water.

The solutions of ZnSO4 , FeSO4, CuSO4 and AgNO3 are taken in four different test tubes. Suppose, an iron nail is kept immersed in each one: In which test tube the iron nail under goes a colour change?, What is the reaction taking place here?

The following four colourless salt solutions are placed in separate test tubes and a strip of a copper is placed in each. Which of the following solution will finally turn blue? (1)NaCl (2)AgNO3 (3)ZnSO4 (4)Cd(NO3)2

Take 25 ml water in a beaker and the pass electricity through it. Then add little sulphuric acid in it: Which type of ion formed more when sulphuric acid is added in water.

Take 25 ml water in a beaker and the pass electricity through it. Then add little sulphuric acid in it: What happens when dil H_2SO_4 is added?

Take 25ml water in a beaker and pass electricity through it. The add little sulphuric acid in it. a) Why electricity didnot pass through pure water? b) What is your observation when H_2 SO_4 is added in water? c) Which type of ion formed more, when sulphuric acid is added in water.

Take cold water and Hot water in two test tubes, Add one or two drops of phenolphthalein in it Drop equally sized Mg ribbon in it: In which test tube pink colour occurred sharply?

Crystalline barium chloride is not so soluble in water as crystalline sodium chloride is. On adding a saturated solution of barium chloride to a saturated solution of table salt (Which is NaCl with negligible impurities of NaHCO_(3) and Na_(2)SO_(4) ), a dense crystalline white substance is deposited. The deposit will most probably be of