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

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

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

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

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

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

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

8) 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 ______

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

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

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

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

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

14) Choose the true statement

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

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

17) The shape of the carbonate ion is

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

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

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

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

22) Which order of IE is incorrect

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

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

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