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Home  arrow Student Resources  arrow Chapter 4: Experimental techniques  arrow Multiple choice questions

Multiple choice questions

Try the following multiple choice questions to test your knowledge of this chapter. For each question there is one correct answer. The periodic table, physical constants and relative atomic masses needed for these problems are given on the inside covers of Inorganic Chemistry, fourth edition by C.E. Housecroft and A.G. Sharpe. Once you have answered the questions, click on 'Submit Answers for Grading' to get your results.

This activity contains 20 questions.

Question 1.
In which of the following mass spectrometric techniques is the sample introduced as a solution which is nebulized under an applied electrical potential?

 
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Question 2.
In reversed-phase HPLC:

 
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Question 3.
Deuteration of C2H2OH to C2H5OD:

 
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Question 4.
To compare the electronic absorption spectra of three iron(II) complexes, you want to combine the three spectra in one plot. You should plot:

 
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Question 5.
Which of the following analytical methods would you choose to investigate whether a compound is a monomer, dimer or trimer?

 
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Question 6.
WCl2F4 is octahedral. Which of the following statements about the 19F NMR spectra of cis- and trans-isomers of WCl2F4 is correct? Ignore coupling to 183W.

 
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Question 7.
Values of I (natural abundance) for 11B and 1H are 3/2 (80%) and 1/2 (100%) respectively. The 11B NMR spectrum of NaBH4 shows:

 
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Question 8.
You have prepared a sample of [Co(en)3]Br3 (en = H2NCH2CH2NH2). Which technique is best suited to confirming that the metal ion is in an octahedral environment in the solid state?

 
End of Question 8


Question 9.
Which of the following compounds would be the most suitable for making a stock solution of Pb2+ ions for calibration purposes in AAS?

 
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Question 10.
The 1H NMR spectrum of SbMe5 contains one signal at 320 K in solution. This suggests:

 
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Question 11.
The 1H NMR spectrum of PMe3 is expected to show:

 
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Question 12.
A routine way of detecting whether a sample of PEt3 has partially oxidized to OPEt3 is to:

 
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Question 13.
You are trying to distinguish between Ph2PH (compound A) and Ph2PCH2PPh2 (compound B) using 31P NMR spectroscopy. You would:

 
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Question 14.
Which technique does the pharmaceutical industry routinely use to screen for polymorphs of a compound?

 
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Question 15.
The presence of solvent in a crystalline sample of a compound could be detected and quantified using:

 
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Question 16.
Samples prepared for Moessbauer spectroscopy should be in which phase?

 
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Question 17.
In which of the following sets of isotopes is there an NMR inactive nucleus?

 
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Question 18.
EPR spectroscopy is often used to investigate copper(II) complexes but not copper(I) complexes. This is because:

 
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Question 19.
You are trying to find out if a thiocyanate ligand , [NCS]-, is bonded to a metal ion through the N or S atom. Which technique would be MOST useful to you?

 
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Question 20.
Elemental anaytical data for a new, monomeric compound X are a requirement of publishing details of the compound in the literature, even when crystallographic and spectroscopic data are available. This is because:

 
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