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

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

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

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

5) 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 ______

6) Choose the true statement

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

8) Which order of IE is incorrect

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

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

11) The central atom of a specie having three bond pairs with no lone pair will have geometry

12) Select the specie that has the highest ionic character

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

14) The shape of the carbonate ion is

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

16) H-O-H bond angle in H₂O is 104.5° and not 109° because of more space occupied by

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

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

19) H₃O⁺ contains
I-Electrovalent bond
II-Dative bond
III-Covalent bond

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

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

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

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

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

25) 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