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

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

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

4) The shape of the carbonate ion is

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

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

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

8) Choose the true statement

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

10) Which order of IE is incorrect

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

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

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

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

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

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

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

18) Select the specie that has the highest ionic character

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

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

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

23) 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 ______

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

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