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WorksheetsBSc Chemistry
Total questions: 10
Worksheet time: 5mins
Which of the following absorption peak or peaks would be most useful for identifying the compound diethylamine?
Medium stretch from 3500 to 3300 cm-1
Sharp peak at 1750 cm-1
Two medium peaks, one at 3300 cm-1 and 3400 cm-1
Very broad stretch from 3500 to 2500 cm-1
On which factors the vibrational stretching frequency of diatomic molecule depend?
Force constant
Atomic population
Temperature
Magnetic field
A reaction is second order with respect to the reactant. How is the rate of reaction affected if the concentration of the reaction is "doubled"?
(a)
Based on the absorption spectrum, what is the likely name of the compound in the image?
butanoic acid
Pentanol
diethylamine
aniline
What is the relation between restoring force, f to the displacement q in Hooke’s law?
f = -kq
f = kq
f = kq2
f = -kq2
Listen the audio and answer the question.
Stretching frequencies appear mostly in the fingerprint region
Stretching frequencies are lower than corresponding bending frequencies.
Triple bonds have lower stretching frequencies than corresponding double bonds, which in turn have lower frequencies than single bonds.
Bonds to hydrogen have higher stretching frequencies than those to heavier atoms.
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Formaldehyde is
CH3CHO
HCHO
C6H5CHO
NONE OF THESE
Identify the compound
Toluene
Benzaldehyde
Benzoic Acid
None of these
