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

2) Which of the following process is endothermic?

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

4) Sodium reacts with water more vigorously than lithium because

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

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

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

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

9) How many non-metals are present in the s-block?

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

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

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

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

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

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

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

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

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

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

20) Choose the correct statement

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

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

23) Choose the incorrect statement

24) Alkaline earth metals form _______ oxide at normal conditions

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