CHEM 1411 – What is the bond angle for the molecule

CHEM 1411 – What is the bond angle for the molecule

Subject: Chemistry / General Chemistry
Question
Question 1
What is the bond angle for the molecule SiCl2F2?
A. 90 degrees B. 109 degrees C. 120 degrees D. 180 degrees E. 60 degrees

Question 2
Cadmium iodide, CdI2, is a covalent compound. The molecule has the same geometry as a BeCl2
molecule. Which of the following kinds of hybrid orbitals does the cadmium atom likely utilize in CdI2?
A. sp B. sp2 C. sp3 D. sp3d E. sp3d2

Question 3
What is the hybridization at the central atom (P) of PF3Cl2?
A. sp B. sp2 C. sp3 D. sp3d E. sp3d2

Question 4
What is the molecular geometry of carbon disulfide, CS2?
A. linear B. bent C. tetrahedral D. trigonal planar E. T-shaped

Question 5
Which one of the following molecules is polar?
A. SiH4 B. SF6 C. H2 D. PCl5 E. SF4

Question 6
What is the bond angle in the molecule BF3?
A. 90 degrees B. 109 degrees C. 120 degrees D. 180 degrees E. 60 degrees D. 180 degrees E. 60 degrees

Question 7
What is the orbital hybridization of C in CO2?
A. sp B. sp2 C. sp3 D. sp4 E. sp3d

Question 8
What is the bond angle in the carbonate ion, CO3-2?
A. 90 degrees B. 109 degrees C. 120 degrees

Question 9
Which of the following is a false statement about BF3?
A. BF3 has trigonal planar molecular geometry.
B. BF3 has trigonal pyramidal electronic geometry.
C. All three bond angles in BF3 are 120°.
D. The B atom does not satisfy the octet rule.
E. Although the electronegativity difference between B and F is large (2.0 units), BF3 is a covalent
compound.
Question 10
Which choice below is a square planar geometry?
a. CCl4 b. XeF4 c. PH3 d. XeF2 e. ICl3

Question 11
An element that is sp3d hybridized and which has no lone pairs of electrons around it in a molecule is
at the center of a(an) ____ described by imaginary lines connecting the identical surrounding atoms.
A. triangular plane
bipyramid B. tetrahedron C. octahedron D. pyramid

Question 12
Which one of the following is a polar molecule with nonpolar bonds?
A. H2O B. NH3 C. PF5 D. CHCl3 E. none of these

Question 13
A molecule with a trigonal bipyramidal geometry will have a _____ orbital hybridization.
A. sp2d2 B. sp3 C. sp3d D. sp3d2 E . sp2

Question 14
Predict the molecular geometry of arsine, AsH3.
A. linear B. trigonal planar C. tetrahedral D. trigonal pyramidal E. bent E. trigonal

Question 15
What is the molecular geometry of the PF4+1 ion?
A. octahedral
B. tetrahedral
C. trigonal planar
D. trigonal pyramidal
E. trigonal bipyramidal
Question 16
Which choice below is tetrahedral?
A. CBr4 B. PH3 C. CCl2Br2 D. XeF4 E. all except XeF4

Question 17
How many nonbonding pairs of electrons does the central atom Xe have in the molecule XeF4?
A. 1 B. 2 C. 3 D. 4 E. 5

Question 18
What is the molecular geometry of the species, ICl2+.
A. linear B. angular C. tetrahedral D. trigonal planar E. it varies

Question 19
How many sigma (mc100-1.jpg) bonds and how many pi (mc100-2.jpg) bonds does the ethene
molecule contain? A. 4 and 2 B. 5 and 2 C. 5 and 1 D. 5 and 0 E.8 and 2

Question 20
According to the VSEPR Theory, if there are 3 electron orbitals in the valence shell of an atom they will
be arranged in an _____ geometry. A. octathedral
B. linear
C. tetrahedral
D. trigonal planar
E. trigonal bipyramidal
Question 21
A molecule whose central atom is sp hybridized will have a ______ geometry.
A. octahedral
B. linear
C. trigonal planar
D. trigonal bipyramidal
E. tetrahedral
Question 22
According to the VESPR Theory, if there are five electron orbitals in the valence shell of an atom they
will be arranged in an ________ geometry.
A. octahedral
B. linear
C. tetrahedral
D. trigonal planar
E. trigonal bipyramidal
Question 23
Which of the following molecules is sp3 hybridized at the central atom and has bent molecular
geometry?
A. CH2Cl2 B. NH3 C. SO2 D. OF2 E. CO2

Question 24
Consider the following statements about BCl3 molecules. Which statement is false?
A. The B-Cl bonds are quite polar.
B. The bond dipoles exactly cancel.
C. The Cl-B-Cl bond angles are 109.5°.
D. BCl3 molecules are nonpolar.
E. BCl3 molecules are planar.
Question 25
Which of the following molecules has three lone pairs of electrons on the central atom?
A. XeF4 B. SF4 C. SO3 D. XeF2 E. NCl3 Question 26
What is the geometry of a carbon atom involved in a triple bond?
A. linear B. trigonal planar C. tetrahedral D. trigonal bipyramidal E. octahedral