CHEM2004                                                                Final Exam 2006

 

Place answers on the answer sheet.  Good Luck.

 

1.         The number of bonds expected for N is

 

a)  1                 b)  2                 c)  3                 d)  4

 

2.         Which element has the highest enthalpy of atomization?

 

a)  B                b)  C                c)  N                d)  O

 

3.         Which is not an allotrope of carbon?

 

a)  charcoal                                          b)  diamond

c)  graphite                                          d)  buckminsterfullerenes

 

4.         Which element would have the smallest band gap? 

 

a)  N                b)  P                 c)  As               d)  O

 

5.         Fluorapatite is a mineral used in the production of

 

a)  H₂CO₃                    b)  HNO₃                     c)  H₂SO₄                     d)  H₃PO₄

 

6.         Five types of radii are used to describe atoms, which is the largest?

 

a)  covalent     b)  metallic      c) cationic        d) van der Waal

 

7.         HClO₄ is an example of a(n)

 

a) oxoanion     b) oxoacid   c) hydrated ion    d) metal oxide

 

8.         Classify the basicity of CrO₄^2- 

 

a)  nonbasic                                         b)  feebly basic

c)  moderately basic                            d)  very strongly basic

 

9.         The extent of hydration depends on 3 factors, which is not one of these three?

 

a)  charge                                            b)  electronegativity

c)  water concentration                                   d)  radius

 

10.       Which is not an explanation for why the number of oxo groups affects the basicity?

 

a)  delocalization of negative charge

b)  addition of oxo groups increases charge of central atom

c)  Lewis Dot Structures

d)  electronegativity of central atom pulls electrons from O

 

11.       Cations which react irreversibly with water are classified as

 

a) nonacidic                                         b) feebly acidic

c) moderately acidic                            d) very strongly acidic

 

12.       Which is the strongest acid?

 

a)  HClO₄                    b)  HNO₂                     a)  HClO₂                    b)  HF

 

13.       Television screens are made by adding what to the glass mixture?

 

a)  B₂O₃                       b)  PbO                        c)  SrO             d)  La₂O₃

 

14.       Augite is an example of

 

a)  cyclic polysilicate               b)  chain polysilicate

c)  linear silicates                    d)  polymeric sheet silicates

 

15.       Zeolites are silicates with which additional element?

 

a)  B                b)  Al               c)  Pb               d)  Sr

 

16.       The reaction:  Ce⁺³  ---->  Ce⁺⁴  is a(n)

 

a)  oxidation                                        b)  reduction

 

17.       For the half-reaction:  CN^-   ---->  CNO^-, the number of electrons transferred is

 

a)  1                 b)  2                 c)  3                 d)  4

 

18.       The catalyst used for the Wilkinson process is based on which metal?

 

a)  Ti                b)  Ru              c)  Mo             d)  Rh

 

19.       Color of the Ca flame test

 

a)  blue                        b)  green                     c)  red              d)  yellow

 

20.       The reaction of CO with H₂ to produce hydrocarbons and water is called

 

a)  Fischer-Tropsch process              b)  Water gas shift reaction

c)  Monsanto process                         d)  Wacker process

 

21.       Which is another name for a Lewis acid?

 

a)  ligand                                             b)  nucleophile

c)  electrophile                                   d)  electron pair donor

 

22.       Which ion is not a Group I ion?

 

a)  Pb⁺²                        b)  Na⁺             c)  Hg₂⁺²                      d)  Ag⁺

 

23.       The best catalyst for the HDS process is based on which metal?

 

a)  Ru              b)  Al               c)  Mo             d)  Pt

 

24.       The metal found in crab blood

 

a)  Fe                                       b)  Cu

c)  Co                                      d)  Cr

 

25.       A prepared for bonding configuration of s²p³ represents

 

a)  Mg             b)  Al               c)  Si                d) P

 

26.       Which is not a good ligand?

 

a)  water (H₂O)                                   b)  methane (CH₄)

c)  ammonia (NH₃)                              d)  chloride (Cl^-) 

 

27.       A low volatile, high melting solid is a(n)

 

a)  nonstoichiometric oxide                b) spinel         

c)  refractory                                       d) amphibole

 

28.       Heteropoly blues contain which metal?

 

a)  V                 b)  Nb              c)  Cr               d)  Mo

 

29.       The oxide of this element is used to make pyrex glass

 

a)  Al               b)  Pb               c)  Ce              d)  B

 

30.       Which phase of matter do you expect the lowest van der Waal forces?

 

a)  gases                      b)  liquids                    c)  solids

 

31.       The number of valence electrons in Cr⁺³

 

a)  5                 b)  4                 c)  3                 d)  2

 

32.       Cadmium poisoning is associated with

 

a)  itai itai                                            b)  Mad Hatter’s disease

c)  Alzheimer’s                                   d)  arthritis

 

33.       Which element of Group VA shows the least metallic character?

 

a)  N                b)  P                 c)  As               d)  Sb

 

34.       The ability to form bonds with itself is called

 

a)  catenation                                      b)  chelation

c)  polymerization                               d)  sintering

 

35.       A compound formed by the combination of an acidic cation and a nonbasic anion will be _______________ in water.

 

a)  soluble                                           b)  insoluble

 

36.       Which ion below would be colored in solution?

 

a)  Al⁺³             b)  Cd⁺²                       c)  Cu⁺²                        d)  Na⁺

 

37.       Most common oxidation state for lanthanides

 

a)  + 2              b)  + 3              c)  + 4              d) + 5

 

38.       If the C.N. of the most abundant atom is less than 1, the compound will most likely be

 

a)  monomeric                         b)  1 dimensional polymers

c)  polymers with high m.p.

 

39.       Number one chemical produced in terms of tons/year

 

a)  phosphoric acid                  b)  hydrochloric acid

c)  nitric acid                           d)  sulfuric acid

 

40.       Pt metal is not corroded by air to form a protective coating.  Pt would be classified as

 

a)  a very electropositive metal

b)  an electropositive metal

c)  an electronegative metal

 

41.       The Pb⁺² ion is not precipitated with

 

a)  nitric acid

b)  hydrochloric acid

c)  sulfuric acid

d)  potassium chromate

 

42.       Volatile oxide used as a refrigerant and as a fire extinguisher

 

a)  CO             b)  CO₂                        c)  H₂CO₃                    d)  Na₂CO₃