The structure of 2-methylbutan-2-yl 2-methylpropanoate is shown below.
How many signals would be found in the 1H NMR spectrum of 2-methylbutan-2-yl 2-methylpropanoate and what would be the ratio of the peak areas?
| Signals | Ratio of peak areas | |
| A | 3 | 2 : 2 : 1 |
| B | 4 | 6 : 6 : 3 : 2 |
| C | 5 | 6 : 6 : 3 : 2 : 1 |
| D | 5 | 3 : 3 : 3 : 2 : 1 |
Which benzene derivative is represented by the following electron density map?
Benzaldehyde
Benzoic acid
Bromobenzene
Nitrobenzene
Which of the following statements about angelic acid are correct?
I and II only
I and III only
II and III only
I, II and III
Which compound(s) produces the fewest number of peaks in its 1H NMR spectrum?
| I | II | III |
 |
 |
 |
| 1,2-Dimethylbenzene | 1,2-dimethylcyclopentane | 2-methylpropanal |
I and II only
I and III only
II and III only
I, II and III
The 1H NMR spectrum of CH3CHCl2 shows two signals.
What is the correct assignment of splitting patterns for these signals?
| CH3 group | CH group | |
| A | doublet | quartet |
| B | quartet | doublet |
| C | singlet | singlet |
| D | triplet | singlet |
