The results of reactions of metals A, B, C, D, E with different solutions are given in the table below. Observe the table and write answers.  Which is the least reactive metal ? Why ?

The results of reactions of metals A, B, C, D, E with different solutions are given in the table below. Observe the table and write answers. Which metals form brown layer ?

The results of reactions of metals A, B, C, D, E with different solutions are given in the table below. Observe the table and write answers. Arrange the metals A, B, C, D, E in the order of their reactivity ?

Four metals A, B, C and D are in turn added to the following solutions one by one .The observations made are tabulated below. which is the most reactive metals? Why?

Some elements belonging to second period of periodic table , and their atomic radii are given below .Observe them and write answers . which is the outermost orbit of alll these elements ?

Observe the given table and answer the following questions Which birds are carnivores?

Some elements belonging to second period of periodic table , and their atomic radii are given below .Observe them and write answers . Which elements atomic size bigger. Beryllium or Carbon ? Why ?

Some elements belonging to second period of periodic table , and their atomic radii are given below .Observe them and write answers . Which of the 2^(nd ) period elements closer to the configuration of inert gas ?

Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows. Use the Table above to answer the following questions about metals A, B, C and D. (i) Which is the most reactive metal? (ii) What would you observe if B is added to a solution of Copper(II) sulphate? (iii) Arrange the metals A, B, C and D in the order of decreasing reactivity.

The sale of television sets of different companies on a day is shown in the pictograph given below. Answer the following questions: Which company had the least sale?

Observe the information provided in the table and answer the questions given below it. What are the s-block elements in the table?