1H NMR Spectrum

WHICH of the following is the reason for peaks in NMR spectra?

• functional groups

• electrons

• bonds

• nuclei

Which of the compound is taken as standard for recording chemical shift in ¹H NMR Spectroscopy?

• Dimethylsilane

• Trimethylsilane

• Tetramethylsilane

• Methylsilane

How many NMR signals in propane is

• 4

• 3

• 2

• 1

Which type of electromagnetic waves are used in NMR experiments?

• Infrared waves

• Microwaves

• Radio waves

• Ultraviolet waves

which of the following information is not given on an ¹H NMR spectra?

• number of protons within that environment

• number of different environments a proton can be found in

• what might be on neighbouring atoms

• how much energy a bond absorbs

Which molecule will produce the following spectra with one H environment?

• CH₃CH₂CH₃
• CH₃COOCH₃
• CH₃CH₃
• CH₃COCH₃

How many different H environment for molecule shown?

• 4 Hydrogen environment, in (1.1.3.3) ratio
• 4 Hydrogen environment, in (1.1.3.6) ratio
• 3 Hydrogen environment, in (1.1.6) ratio
• 3 Hydrogen environment, in (1.1.3) ratio

How many different H environment for molecule shown?

• 3 Hydrogen environment, in (2.2.3) ratio
• 4 Hydrogen environment, in (3.2.2.3) ratio
• 3 Hydrogen environment, in (3.2.3) ratio
• 4 Hydrogen environment, in (3.3.2.3) ratio

What can be deduced from the following ¹HNMR spectrum?

• There is only one hydrogen atom in the molecule.

• There is only one hydrogen environment in the molecule.

• The molecule is a hydrocarbon.

• There is only one isotope in the element.

The possible number of peaks in 1H NMR spectrum of the following structure is

• 1

• 2

• 3

• 4