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

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

3) Choose the true statement

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

5) Select the specie that has the highest ionic character

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

7) 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 ______

8) 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

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

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

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

12) Which order of IE is incorrect

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

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

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

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

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

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

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

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

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

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

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

24) The shape of the carbonate ion is

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