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1) II-A elements on reaction with oxygen produce their oxides and these oxides are very stable due to their.

2) Which of the following pair of elements shows the abnormal electronic configuration

3) Which of the following is the correct decreasing order of basic character of alkali metal oxides?

4) The electronegativity value of group IA decreases from top to bottom due to

5) Which of the following transition element show only one oxidation state?

6) Sodium reacts with water more vigorously than lithium because

7) The geometry of the complexes depends upon the type of _______ taking place in the
valence shell of the central metal atom.

8) Which property of alkaline earth metals decreases with the increase in atomic number

9) Which of the following process is endothermic?

10) Alkaline earth metals form _______ oxide at normal conditions

11) Which of the following is correct regarding the IA elements in the group?

12) Ionization energy increases from left to right. In which case the highest amount of energy is required to remove valence shell electrons.

13) Choose the incorrect statement

14) Which of the following group has the highest electrical conductivity

15) The melting and boiling point of silicon is highest in the 3rd period. This is because of

16) The size of the atoms and ions go on decreasing in periods of s and p block elements because of

17) The total number of unpaired electrons in an atom of atomic number 24 when it carries a +3 charge

18) How many s-orbital electrons are there in phosphorus?

19) Which is the most stable electronic configuration of 1st transition series.

20) Which of the following has the highest binding energy?

21) Which of the following element in reaction with oxygen produce ionic oxides?

22) Choose the correct statement

23) "X" compound absorbs yellow colour light, it will look like it

24) When one mole of aluminium is reacted with excess steam, it produces a mole of hydrogen gas.

25) Zn and Cd are non-typical transition elements and they belong to the _______ group.