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Home arrow Student Resources arrow Chapter 13: The group 13 elements 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 The +1 oxidation state is especially important in group 13 for:
 
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Question 2
2 Covalent radii for the group 13 elements follow which order?
 
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Question 3
3 In a 31P{1H} NMR spectrum of Me3P.BH3, the signal appears as a:
 
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Question 4
4 Which reaction does not occur?
 
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Question 5
5 Which choice is incorrect for the following statement? The [BH4]– ion can coordinate to a single metal ion in a mode which may be:
 
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Question 6
6 In which reaction is the group 13 halide not behaving as a Lewis acid?
 
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Question 7
7 Which statement is incorrect?
 
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Question 8
8 Which statement is incorrect?
 
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Question 9
9 By Wade's rules, which cluster description is incorrect?
 
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Question 10
10 [B3H8]– is fluxional on the NMR spectroscopic timescale. In the 11B and 11B{1H} NMR spectra respectively, you would observe:
 
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Question 11
11 In which reaction does the cluster core undergo a significant change in shape?
 
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Question 12
12 Which statement is incorrect about borazine?
 
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Question 13
13 Which of the following species are isoelectronic?
 
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Question 14
14 In the solid-state structure of spinel, MgAl2O4:
 
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Question 15
15 Which statement is incorrect?
 
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Question 16
16 Which ordering gives the correct sequence of values of the standard enthalpies of atomization of the elements?
 
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Question 17
17 TlI3 is isotypic with CsI3. This suggests:
 
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Question 18
18 To which point group does Al2Cl6 belong?
 
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Question 19
19 A potential diagram for indium at pH 0 shows the following Eo values:
In3+ → In Eo = -0.34 V
In+ → In Eo = -0.14 V
What is the value of Eo for the reduction of In3+ to In+?
 
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Question 20
20 Only one of the group 13 metals reacts directly with N2 when heated to form a nitride. Which metal is it?
 
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