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1) The high value of the first ionization energy of nitrogen than that of oxygen is due to its

2) The radius of an atom cannot be measured precisely because

3) Select the specie that has the highest ionic character

4) The percentage of s-character in hybrid orbital which indicates the longest bond length

5) The half of _________ bond between two similar atoms covalently bonded in a molecule is called the covalent radius.

6) The shape of the carbonate ion is

7) The bond in the fluorine molecule is formed by the overlapping of ______ on each atom of the fluorine atom

8) Choose the true statement

9) The elements of ______, ______ and _______ show abnormally low values of electron affinity in every period

10) Which of the following electronegativity difference suggests that the bond would be ionic nature

11) The ionization energies of III-A and VI-A show an abnormal trend while moving left to the right in a period, which can be best explained by

12) The tendency of an atom to _______ is called electronegativity.

13) The bond between carbon and oxygen in CO₂ is most likely:

14) Which of the following types of bonds has the least electronegativity difference between the bonding atoms?

15) Which of the following is the correct bond energy order?

16) The shortening of bonds is due to the predominant participation of ________ orbital in hybridization

17) The hybridization of carbon number 2 in 1,2-Butadiene

18) The energy gap between 2nd ionization energy and 3rd ionization energy is very large, it is true for an element having ______ Z value belonging to ______

19) All of the following are co-planar molecules except

20) Which order of IE is incorrect

21) Which of the following will have the highest bond energy?

22) The compromised distance between two hydrogen atoms in a hydrogen molecule is

23) Which of the following species contains an sp-hybridized carbon atom

24) Which atomic numbers in the periodic table represent the elements that generally show abnormal trends in ionization energy

25) Ammonia (NH₃) can bond with boron trifluoride (BF). For the bond formation, the electrons are most likely supplied by