Blog

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

2) Sodium reacts with water more vigorously than lithium because

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

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

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

6) Choose the correct statement

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

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

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

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

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

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

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

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

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

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

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

18) Choose the incorrect statement

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

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

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

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

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

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

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