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

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

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

4) Choose the incorrect statement

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

6) Alkaline earth metals form _______ oxide at normal conditions

7) Sodium reacts with water more vigorously than lithium because

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

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

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

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

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

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

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

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

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

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

18) Which of the following process is endothermic?

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

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

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

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

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

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

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