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Home arrow Student Resources arrow Chapter 3: Nuclear properties 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 relative penetrating powers of α- and β-particles, γ radiation and neutrons (n) are:
 
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Question 2
2 An α-particle is:
 
End of Question 2


Question 3
3
The product of the α-decay of
 234
  U is:
 92
 
End of Question 3


Question 4
4 The half-life of 222Rn is 3.82 days. The decay constant, k, is:
 
End of Question 4


Question 5
5 The decay of a radioactive isotope (assuming that there is no complication by decay of a daughter nuclide) follows:
 
End of Question 5


Question 6
6 Which of the following are transuranium elements?
 
End of Question 6


Question 7
7 Which of the following elements is not man-made?
 
End of Question 7


Question 8
8 A β-particle is emitted by a nuclide of atomic number Z and mass number M. The product nuclide will have:
 
End of Question 8


Question 9
9 A α-particle is emitted by a nuclide of atomic number Z and mass number M. The product nuclide will have:
 
End of Question 9


Question 10
10 Deuteration of C2H5OH to C2H5OD:
 
End of Question 10


Question 11
11 The nuclear spins of 1H and 2H are, respectively:
 
End of Question 11


Question 12
12 The 19F NMR spectroscopic signal of NH4PF6 is a:
 
End of Question 12


Question 13
13 The 11B{1H} NMR spectrum of H3B.PF3 is a:
 
End of Question 13


Question 14
14 You are trying to distinguish between Ph2PH (compound A) and Ph2PCH2PPh2 (compound B) using 31P NMR spectroscopy. You would:
 
End of Question 14


Question 15
15 195Pt is spin-active with I = ½ (33.8%). The 31P{1H} NMR spectrum of cis-[PtCl2(PPh3)2] would exhibit:
 
End of Question 15


Question 16
16 If you were to record the solution 31P{1H} NMR spectrum of the octahedral complex mer-[IrCl3(PEt3)3], the spectrum (assuming isotopes of Ir are not spin active) would exhibit:
 
End of Question 16


Question 17
17 WCl2F4 has an octahedral structure. Which of the following statements about the 19F NMR spectra of cis- and trans-WCl2F4 is not true? Ignore coupling to 183W.
 
End of Question 17


Question 18
18 The structure of dimethylformamide (DMF, Me2NCHO) can be described in terms of two resonance structures, one containing C=O and one containing C=N. The latter resonance structure contributes significantly to the overall bonding. How many signals do you expect to see in the 13C and 1H NMR spectra of DMF at 298 K?
 
End of Question 18


Question 19
19 How many signals should phenylhydrazine (PhNHNH2) exhibit in its 13C NMR spectrum?
 
End of Question 19


Question 20
20 The 13C NMR spectrum of trigonal bipyramidal Fe(CO)5 shows one signal at low temperatures. This is because:
 
End of Question 20







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