Which of the molecules gives rise to a molecular ion with an odd value of m/z?

Which of the following is 3-phenylpentane?

How many peaks are in the proton spin decoupled 13C NMR spectrum of 1,3,5-trinitrobenzene?

Identify which one of the following isomers of C6H14 has the C-13 NMR below.

Which of the following compounds matches IR spectrum below?   _____

Which compound gives the following 1H NMR spectrum?

What is the structure of the compound in the following 1H-NMR spectrum with the molecular formula C10H12O2? Relative integration is shown

Which of the following C4H7OCl compounds best fits the proton NMR spectrum shown below? (The numbers above the peaks are integration values.)

A compound with molecular formula C4H11N exhibits a triplet at d 0.9 (3H), a doublet at d 1.1 (3H), a quintet at d 1.4 (2H), a singlet at d 1.7 (2H) and a sextet at d 2.8 (2H) in its 1H NMR spectrum. Its IR spectrum shows two medium absorption bands near 3400 cm-1. What is the IUPAC name of this compound?

Which of the following compounds fits the proton NMR shown below?