Which of the following statements concerning molecular orbital (MO) bond theory

Question

Which of the following statements concerning molecular orbital (MO) bond theory . is/are CORRECT? I MO theory can describe molecular bonding in excited states. 2. Molecular orbitals are obtained from the combination of atomic orbitals. MO theory predicts that electrons are delocalized over the molecule through molecular 3 orbitals. b. 2 d. 1 and 2 e.1,2, and 3 only only only Which of the following statements concerning valence bond (VB) theory is'are CORRECT? 1. VB theory can describe molecular bonding in excited states. 2. VB theory assumes that electrons are localized between pairs of atoms. 3. VB theory predicts localized lone pairs of electrons. a. 1 onlyb. 2 only c. 3 only d. 2 and 3 e. 1,2, and 3 Which of the following statements concerning hybrid orbitals is/are CORRE The number of hybrid orbitals equals the number of atomic orbitals that are used to create the hybrids. When atomic orbitals are hybridized, the s orbital and at least one p orbital are always hybridized To create tetrahedral structures, the s orbital and all three p orbitals must be hybridized. a. 1 only CT? 2. 3. b. 2 only c. 3only d. 2 and 3 e. 1,2, and 3 -How many sigma (?) bonds and pi (t) bonds are in the following molecule? 4 a. seven ? and three Tt b. seven ?and two c, five ? and five d, five ? and three ? e, five ? and two ? 5What is the hybridization of the sulfur atom in SClh? c. d. none ?.sp b

Explanation / Answer

1. MO theory describes,

e. 1, 2 and 3

--

2. The VB theory descibes,

e. 1, 2 and 3

--

3. correct statement are,

e. 1, 2 and 3

---

4. In the given compound,

a. seven sigma and three pi bonds

--

5. S hybridization in SCl2 is,

c. sp3

--

6. an sp3 with a lone pair has,

d. trigonal pyramidal

--

7. Incorrect statement about MO theory is,

e.

---

8. 4 orbitals combining with another 4 orbitals of second atom gives,

d. 8

--

9. molecular orbital theory descibes paramagnetism .

--

10. In MO theory, bond order = 1/2 x (number of electrons in bonding orbital) - number of electrons antibonding orbitals)

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.