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

2) The shape of the carbonate ion is

3) 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 ______

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

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

6) Select the specie that has the highest ionic character

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

8) Choose the true statement

9) Which order of IE is incorrect

10) 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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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