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Home arrow Student Resources arrow Chapter 12: The group 2 metals arrow Multiple choice questions

Multiple choice questions

For some of these questions, you need data from the appendices of Inorganic Chemistry, third edition by C.E. Housecroft and A.G. Sharpe. On opening the book cover you will find a periodic table and a list of elements and atomic masses. Physical constants are listed on the back inside cover of the book.

Multiple choice questions by Catherine E. Housecroft.



 This activity contains 20 questions.

Question 1
1 Which statement is incorrect about a CaF2 lattice?
 
End of Question 1


Question 2
2 Hydration of the group 2 metal ions for M = Mg, Ca, Sr or Ba gives [M(OH2)n]2+ where n ≥ 6, depending on the metal ion. The process is the most exothermic for:
 
End of Question 2


Question 3
3 Suitable hybridization schemes for Be in BeCl2(g) and BeCl2(s) are, respectively:
 
End of Question 3


Question 4
4 BeF2 dissolves in water to give [Be(OH2)n]2+ where:
 
End of Question 4


Question 5
5 The rutile structure of MgF2 has Mg2+ in sites of coordination number:
 
End of Question 5


Question 6
6 Which property is not typical of a refractory material?
 
End of Question 6


Question 7
7 Which hydroxide is amphoteric?
 
End of Question 7


Question 8
8 Soda lime consists of:
 
End of Question 8


Question 9
9 Which statement is incorrect about the group 2 metals?
 
End of Question 9


Question 10
10 Quicklime and slaked lime are, respectively:
 
End of Question 10


Question 11
11 The mineral source of barium is barytes which is:
 
End of Question 11


Question 12
12 In chlorophyll, the coordination environment of Mg2+ is approximately:
 
End of Question 12


Question 13
13 For CaF2, ΔfHo(298 K) = –1214 kJ mol–1. Use this value and data from the appendices in Inorganic Chemistry to calculate a value (at 298 K) for the process:

Ca2+(g) + 2F–(g) → CaF2(s)

The value is:
 
End of Question 13


Question 14
14 Ksp for BaSO4 is 1.07 x 10–10. From this value, the solubility of BaSO4 can be determined to be:
 
End of Question 14


Question 15
15 The charge density of an Mg2+ ion is most similar to that of:
 
End of Question 15


Question 16
16 The standard enthalpy and Gibbs energy of hydration of Mg2+(g) are, respectively, -1931 and -1836 kJ mol-1 at 298 K. Determine ΔhydSo(298 K) for Mg2+(g).
 
End of Question 16


Question 17
17 Calcium reacts with white phosphorus at high temperatures to form a binary phosphide of formula:
 
End of Question 17


Question 18
18 Mg2+, Ca2+ and Sr2+ ions form stable complexes with crown ethers. This involves interactions between:
 
End of Question 18


Question 19
19 BeCl2 is an example of a:
 
End of Question 19


Question 20
20 Which of the following compounds reacts with water, the other compounds being soluble or sparingly soluble in water?
 
End of Question 20







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