2003 (a)co 2 (b)h 2 o (c)ch 4 (d)c 2 h 4 (e)ph 3 3.the molecule with only one double bond. 4.the...

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Page 1: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

Page 2: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

Page 3: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

Page 4: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

2003

(A) CO2

(B) H2O

(C)CH4

(D)C2H4

(E) PH3

3. The molecule with only one double bond.

4. The molecule with the largest dipole moment

5. The molecule that has trigonal pyramidal geometry

• 3)D

• 4)B

• 5)E

Page 10: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

• In which of the following groups are the three species isoelectronic?

a) S2-, K+, Ca2+

b) Sc, Ti, V2+

c) O2-, S2-, Cl-

d) Mg2+, Ca2+, Sr2+

e) Cs, Ba2+, La3+

Page 11: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

• A

Page 12: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

Of the following compounds, which is the most ionic?

(a) SiCl4(b) BrCl

(e) CaCl2

Page 13: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

• E

Page 14: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

• Which of the following oxides is gas at 25 degrees C?

(a) Rb2O

(b) N2O

(d) SiO2

(e) La2O3

Page 15: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

• B

Page 16: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

A pure, white crystalline solid dissolves in water to yield a basic solution that liberates a gas when excess acid is added to it. On the basis of this information, the solid could be

(a) KNO3

(b) K2CO3

(d) KHSO4

(e) KCL

Page 17: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

• B

Page 18: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

Types of Hybridization exhibited by the C atoms in propene, CH3CHCH2 include which of the following?

I. sp II. sp2 III. Sp3

(a) I only(b) III only(c) I and II only(d) II and III only(e) I, II, and III

Page 19: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

• D

Page 20: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

• Of the following molecules, which has the largest dipole moment?

(a) CO

(b) CO2

(d) HF

(e) F2

Page 21: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

• D

Page 22: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

The electron-dot structure (Lewis Structure) for which of the following molecules would have two unshared pairs of electrons on the central atom?

(A) H2S

(B) NH3

(C)CH4

(D)HCN

(E) CO2

Page 23: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

• A

Page 24: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

I2(g) + 3Cl2(g) 2ICl3(g)

According to the data in the table below, what is the value of DHo for the reaction represented above?

Bond Average Bond Energy kJ/moleI – I 149Cl – Cl 239I – Cl 208

(a) -860 kJ(b) -382 kJ(c) +180 kJ(d) +450 kJ(e) +1258 kJ

Page 25: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

• B

Page 26: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

Which of the following molecules has a dipole moment of zero?

(a) C6H6

(b) NO

(d) NH3

(e) H2S

Page 27: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

• A

Page 28: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

Molecules that have planar configuration include which of the following?

I. BCl3 II. CHCl3 III. NCl3

(a) I only

(b) III only

(d) II and III only

(e) I, II and III only

Page 29: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

• A

Page 30: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

The SbCl5 molecule has a trigonal bipyramidal structure. Therefore the hybridization of Sb orbitals should be.

a. sp2

b. sp3

c. dsp2

d. dsp3

e. d2sp3

Page 31: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

• D

Page 32: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

CCl4, CO2, PCl5, PCl3, SF6

• Which of the following does not describe any of the molecules above?

(a) Linear

(b) Octahedral

(d) Tetrahedral

(e) Trigonal pyramidal

Page 33: 2003 (A)CO 2 (B)H 2 O (C)CH 4 (D)C 2 H 4 (E)PH 3 3.The molecule with only one double bond. 4.The molecule with the largest dipole moment 5.The

• C

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