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

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

3) Choose the true statement

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

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

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

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

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

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

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

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

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

13) The shape of the carbonate ion is

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

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

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

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

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

19) 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

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

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

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

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

24) 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 ______

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