Question : 41.Characterize EACH of the three given statements as being TRUE : 1309593

 

 

41.Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices provided.

(1) In the molecule N2 there are more bonding electron pairs than nonbonding electron pairs.

(2) Electronegativity values for sequential period 2 elements differ by 0.5 units.

(3) The octet rule does not apply to covalent compounds in which coordinate covalent bonding is present.

a.All three statements are true.

b.Two of the three statements are true.

c.Only one of the statements is true.

d.None of the statements is true.

 

 

 

42.Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices provided.

(1) Both tetrahedral and trigonal pyramidal molecules have four VSEPR electron groups about the central atom.

(2) The greater the electronegativity difference between two bonded atoms the greater the polarity of the bond between the two atoms.

(3) A double covalent bond between two atoms is approximately twice as strong as a single covalent bond between the same two atoms.

 

a.All three statements are true.

b.Two of the three statements are true.

c.Only one of the statements is true.

d.None of the statements is true.

 

 

 

43.Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices provided.

(1) In the molecule SO2 both a single bond and a double bond are present.

(2) A linear symmetrical triatomic molecule will always be nonpolar.

(3) The total number of valence electrons available for bonding in the polyatomic ion PO43- is 30.

a.All three statements are true.

b.Two of the three statements are true.

c.Only one of the statements is true.

d.None of the statements is true.

 

 

 

44.Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices provided.

(1) A pentaatomic tetrahedral molecule may be polar or nonpolar depending on the identities of the atoms present.

(2) A bond between atoms that differ in electronegativity by 2.1 units is classified as a polar covalent bond.

(3) The sum of the number of valence electrons a nonmetallic atom has and the number of covalent bonds it “normally” forms is eight.

a.All three statements are true.

b.Two of the three statements are true.

c.Only one of the statements is true.

d.None of the statements is true.

 

 

 

45.Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices provided.

(1) An unpaired electron is present in the Lewis structure for the molecule NO.

(2) The molecule nitric oxide is naturally present in the human body.

(3) The acronym OPR stands for odor replication process.

a.All three statements are true.

b.Two of the three statements are true.

c.Only one of the statements is true.

d.None of the statements is true.

 

 

 

46.Choose the correct number of electrons in the Lewis structure for NH3.

a.zeroc.four

b.oned.eight

 

 

 

47.Choose the correct number of shared electrons in the Lewis structure for H2O.

a.zeroc.four

b.oned.eight

 

 

 

48.Choose the correct number of double bonds in the Lewis structure for CH4.

a.zeroc.four

b.oned.eight

 

 

 

49.Choose the correct number of nonbonding electrons in the Lewis structure for CN– ion.

a.zeroc.four

b.oned.eight

 

 

 

50.Choose the correct number of shared electrons contributed by oxygen to the coordinate covalent bond in CO.

a.zeroc.four

b.oned.eight

 

 

 

 

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