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

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

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

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

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

6) Select the specie that has the highest ionic character

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

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

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

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

11) Choose the true statement

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

13) 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

14) The shape of the carbonate ion is

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

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

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

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

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

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

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

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

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

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

25) Which order of IE is incorrect