Question

51. The smallest F-Se-F angle in the SeF4 molecule is . a) less than 90° b) 90° c) greater than 90° but less than 120° d) 120° 52. The SeF4 molecule is . a) nonpolar b) polar, with partial negative charges on F and a partial positive charge on Se c) polar, with partial positive charges on F and a partial negative charge on Se Questions 53 through 55 pertain to acetic acid, for which the Lewis structure is shown below. H :O: | (1) || H — C — C — O — H | (2) (3) H 53. In acetic acid, the molecular geometry of atom 1 is . a) square planar b) T-shaped c) tetrahedral d) trigonal planar e) trigonal pyramidal 54. In acetic acid, the molecular geometry of atom 2 is . a) square planar b) T-shaped c) tetrahedral d) trigonal planar e) trigonal pyramidal 55. In acetic acid, the molecular geometry of atom 3 is . a) bent b) octahedral c) square planar d) tetrahedral e) trigonal planar 56. Which of the following bond angles is the smallest? a) F-B-F in BF3 b) H-N-H in NH3 c) H-C-H in CH4 d) H-O-H in H2O 57. What is the electron geometry of NH4+? a) square planar b) tetrahedral c) trigonal planar d) trigonal pyramidal 58. What is the hybridisation of the N atom in NH4+? a) sp b) sp2 c) sp3 d) sp3d e) sp3d2 59. The formal charge on the N atom in NH4+ is . a) 3- b) 1- c) 0 d) 1+ e) 5+ 60. The N-H bonds in NH4+ are . a) ? bonds b) ? bonds 61. The electron pairs making up the N-H bonds in NH4+ are concentrated . a) in the H orbitals only b) in the N orbitals only c) in the region where the orbitals of H and N overlap. 62. What is the electron geometry of H2O? a) bent b) linear c) tetrahedral d) trigonal planar e) trigonal pyramidal

          51. The smallest F-Se-F angle in the SeF4 molecule is ______.
a) less than 90°
b) 90°
c) greater than 90° but less than 120°
d) 120°

52. The SeF4 molecule is ______.
a) nonpolar
b) polar, with partial negative charges on F and a partial positive charge on Se
c) polar, with partial positive charges on F and a partial negative charge on Se

Questions 53 through 55 pertain to acetic acid, for which the Lewis structure is shown below.
H :O:
| (1) ||
H — C — C — O — H
| (2) (3)
H

53. In acetic acid, the molecular geometry of atom 1 is ______.
a) square planar
b) T-shaped
c) tetrahedral
d) trigonal planar
e) trigonal pyramidal

54. In acetic acid, the molecular geometry of atom 2 is ______.
a) square planar
b) T-shaped
c) tetrahedral
d) trigonal planar
e) trigonal pyramidal

55. In acetic acid, the molecular geometry of atom 3 is ______.
a) bent
b) octahedral
c) square planar
d) tetrahedral
e) trigonal planar

56. Which of the following bond angles is the smallest?
a) F-B-F in BF3
b) H-N-H in NH3
c) H-C-H in CH4
d) H-O-H in H2O

57. What is the electron geometry of NH4+?
a) square planar
b) tetrahedral
c) trigonal planar
d) trigonal pyramidal

58. What is the hybridisation of the N atom in NH4+?
a) sp
b) sp2
c) sp3
d) sp3d
e) sp3d2

59. The formal charge on the N atom in NH4+ is ______.
a) 3-
b) 1-
c) 0
d) 1+
e) 5+

60. The N-H bonds in NH4+ are ______.
a) ? bonds
b) ? bonds

61. The electron pairs making up the N-H bonds in NH4+ are concentrated ______.
a) in the H orbitals only
b) in the N orbitals only
c) in the region where the orbitals of H and N overlap.

62. What is the electron geometry of H2O?
a) bent
b) linear
c) tetrahedral
d) trigonal planar
e) trigonal pyramidal

51. The smallest F-Se-F angle in the SeF4 molecule is .
a) less than 90°
b) 90°
c) greater than 90° but less than 120°
d) 120°

52. The SeF4 molecule is .
a) nonpolar
b) polar, with partial negative charges on F and a partial positive charge on Se
c) polar, with partial positive charges on F and a partial negative charge on Se

Questions 53 through 55 pertain to acetic acid, for which the Lewis structure is shown below.
H :O:
| (1) ||
H — C — C — O — H
| (2) (3)
H

53. In acetic acid, the molecular geometry of atom 1 is .
a) square planar
b) T-shaped
c) tetrahedral
d) trigonal planar
e) trigonal pyramidal

54. In acetic acid, the molecular geometry of atom 2 is .
a) square planar
b) T-shaped
c) tetrahedral
d) trigonal planar
e) trigonal pyramidal

55. In acetic acid, the molecular geometry of atom 3 is .
a) bent
b) octahedral
c) square planar
d) tetrahedral
e) trigonal planar

56. Which of the following bond angles is the smallest?
a) F-B-F in BF3
b) H-N-H in NH3
c) H-C-H in CH4
d) H-O-H in H2O

57. What is the electron geometry of NH4+?
a) square planar
b) tetrahedral
c) trigonal planar
d) trigonal pyramidal

58. What is the hybridisation of the N atom in NH4+?
a) sp
b) sp2
c) sp3
d) sp3d
e) sp3d2

59. The formal charge on the N atom in NH4+ is .
a) 3-
b) 1-
c) 0
d) 1+
e) 5+

60. The N-H bonds in NH4+ are .
a) ? bonds
b) ? bonds

61. The electron pairs making up the N-H bonds in NH4+ are concentrated .
a) in the H orbitals only
b) in the N orbitals only
c) in the region where the orbitals of H and N overlap.

62. What is the electron geometry of H2O?
a) bent
b) linear
c) tetrahedral
d) trigonal planar
e) trigonal pyramidal

Added by Rosario C.

Question

Please give Ace some feedback