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

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

3) In the case of melting points and boiling points which element will be present at the top of the graph

4) Choose the incorrect statement

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

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

7) Alkaline earth metals form _______ oxide at normal conditions

8) Which of the following group elements are strong reducing agents?

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

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

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

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

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

14) Which of the following process is endothermic?

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

16) Sodium reacts with water more vigorously than lithium because

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

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

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

20) Paramagnetic behaviour of an atom, ion or molecule is due to the presence of

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

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

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

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

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