Chapter 22 4 Which One The Following Compounds Exhibits The

192) The silicate ion shown in the picture below combines with beryllium and aluminum to form the

mineral beryl. What is the formula and charge of the silicate ion?

A) Si6O612+

B) Si6O122-

C) Si6O1812–

D) Si6O2424–

193) The double-stranded silicate ion shown in the picture below combines with calcium and magnesium

to form the mineral tremolite, which is a form of asbestos. What is the formula and charge of the

repeating unit of the silicate ion?

A) SiO32-

B) Si4O116-

C) Si6O1710–

D) Si12O3012–

194) The two-dimensional layer silicate ion shown in the picture below combines with magnesium and

hydroxide ions to form talc. What is the formula and charge of the repeating unit of the silicate ion?

A) SiO32-

B) Si4O104-

C) Si6O156-

D) Si18O5028–

Each of the pictures (a)-(d) represents one of the following substances at 25°C: potassium, fluorine,

iodine, potassium fluoride, not necessarily in that order.

195) Which picture corresponds to potassium?

A) picture (a)

B) picture (b)

C) picture (c)

D) picture (d)

196) Which picture corresponds to fluorine?

A) picture (a)

B) picture (b)

C) picture (c)

D) picture (d)

197) Which picture corresponds to iodine?

A) picture (a)

B) picture (b)

C) picture (c)

D) picture (d)

198) Which picture corresponds to potassium fluoride?

A) picture (a)

B) picture (b)

C) picture (c)

D) picture (d)

199) What is the name for the group of elements indicated by the shaded portion of the periodic table?

A) alkali metals

B) alkaline earth metals

C) inner-transition metals

D) transition metals

200) What is the name for the group of elements indicated by the shaded portion of the periodic table?

A) alkali metals

B) alkaline earth metals

C) inner-transition metals

D) transition metals

201) What is the name for the group of elements indicated by the shaded portion of the periodic table?

A) alkaline earth metals

B) group 3A elements

C) halogens

D) noble gases

202) What is the name for the group of elements indicated by the shaded portion of the periodic table?

A) alkaline earth metals

B) group 3A elements

C) halogens

D) noble gases

22.2 Algorithmic Questions

1) What is the most metallic element of group 5A?

A) P

B) As

C) Sb

D) Bi

2) Which of the following elements exhibits the most metallic character?

A) B

B) C

C) N

D) O

3) Which one of the following is not a main group element?

A) Fr

B) Ra

C) Th

D) C

4) What are the three most abundant elements in the Earth’s crust?

A) H, O, Al

B) O, Al, Si

C) O, Si, Ca

D) Al, C, Fe

5) What are the three most abundant elements in the human body?

A) H, C, O

B) H, O, Fe

C) H, C, N

D) H, C, P

6) What is the top chemical compound produced in the United States?

A) Cl2

B) NI3

C) NaBr

D) H2SO4

7) Which one of the following is not a main group element?

A) Rb

B) Ba

C) Fe

D) Ge

8) What is the most metallic element of group 4A?

A) Ge

B) Sb

C) Sn

D) Pb

9) Which of the following elements exhibits the most metallic character?

A) Ga

B) Ge

C) C

D) S

10) Which one of the following compounds exhibits the strongest hydrogen bonding between its

molecules?

A) HF

B) HBr

C) H2O

D) Ar

11) Which one of the following elements can form more than four bonds with other elements?

A) C

B) O

C) F

D) P

12) Which one of the following elements forms the strongest π-bonds?

A) C

B) P

C) Mg

D) Li

13) Which compound exhibits pi bonding?

A) I2

B) C2

C) P4

D) S8

14) What is the geometric structure of P4 molecules?

A) linear

B) rectangular

C) square planar

D) tetrahedral

15) Which one of the following compounds exhibits the strongest hydrogen bonding between its

molecules?

A) H

F

B) H

Cl

C) H

Br

D) H

I

16) Which one of the following elements can form more than four chemical bonds with other elements?

A) N

B) O

C) F

D) S

17) Which of the following elements forms the most ionic binary hydride?

A) Fr

B) Ba

C) Po

D) At

18) Which of the following elements forms the most ionic binary hydride?

A) Cs

B) N

C) Si

D) Ge

19) The strongest homonuclear single bond is

A) H—H

B) Ge—Ge

C) As—As

D) I—I

20) Which is an ionic binary hydride?

A) HF

B) NaH

C) both HF and NaH

D) neither HF nor NaH

21) In which set are all compounds considered to be ionic binary hydrides?

A) LiH, KH, MgH2, BaH2

B) MgH2, SrH2, AlH3, SiH4

C) MgH2, B2H6, CH4, NH3

D) MgH2, AlH3, SiH4, H2Se

22) In which set are all compounds considered to be covalent binary hydrides?

A) CsH, KH, CaH2, BaH2

B) CaH2, SrH2, AlH3, SiH4

C) BeH2, B2H6, GeH4, PH3

D) CaH2, AlH3, SiH4, H2S

23) Which of the following binary hydrides has the highest melting point?

A) AlH3

B) CaH2

C) NH3

D) SnH4

24) Dissolving 0.040 mole of which of the following in enough water to make 0.220 L of solution would

result in a solution with the highest pH?

A) LiH

B) SrH2

C) NH3

D) PH3

25) What is the oxidation number of H in H2?

A) 0

B) -2

C) +3

D) +1

26) Which of the following hydrides is expected to have the highest melting point?

A) H2S

B) HF

C) H2Se

D) MgH

2

73

27) Which alkali metal forms preferentially an oxide rather than a peroxide or superoxide?

A) Li

B) Na

C) K

D) Mg

28) Which alkali metal forms preferentially a peroxide or superoxide?

A) Li

B) Na

C) Cs

D) Sr

29) Which alkaline earth metal reacts the most vigorously with water at room temperature?

A) Rb

B) Mg

C) Ba

D) Lr

30) Predict the product(s) when the reactants Mg(s) + Cl2(l) are mixed.

A) MgCl(s)

B) MgCl2(s)

C) Mg2Cl(s)

D) MgCl3(s)