Curriculum
Course: IAL Edexcel Modular (Chemistry)
time left:
:
:
Login

Curriculum

IAL Edexcel Modular (Chemistry)

Unit 1. Structure, Bonding and Introduction to Organic Chemistry

0/46

Unit 2. Energetics, Group Chemistry, Halogenoalkanes and Alcohols

0/36
Quiz

Organic Chemistry: Techniques & Spectra – Check yourself

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?

Organic IAL Modular Chemistry check yourself quiz set 4: free practice for IAL Edexcel Modular (chemistry). Work through this Organic IAL Modular Chemistry check yourself quiz set 4 and get instant feedback on every answer. If you get stuck, review the 2.13 Organic Chemistry: Techniques & Spectra — Notes — IAL Chemistry Notes lesson. More practice: IAL Edexcel Modular (chemistry) — all units. Syllabus: Pearson Edexcel International A Levels.

1.
Why is heating under reflux used?
To separate products
To heat for a long time without losing volatile substances
To dry the product
To lower the boiling point
2.
A compound shows a broad absorption at 3350 cm-1 and none at 1700 cm-1. It is most likely:
An alcohol
A ketone
A carboxylic acid
An ester
3.
A peak at m/z 43 in the spectrum of butanone is likely due to:
CH3+
C2H5+
CH3CO+
COOH+
4.
Which is used to remove traces of water from an organic liquid?
Concentrated NaOH
Sodium carbonate solution
Anti-bumping granules
Anhydrous magnesium sulfate
5.
An organochlorine compound shows M and M+2 peaks in the ratio:
1:1
3:1
1:3
2:1
6.
An impure liquid compared to the pure liquid will:
Boil sharply at a lower temperature
Boil at a higher temperature over a range
Not boil
Show a sharper IR spectrum
7.
Which statement best describes Anti-bumping granules?
Separation of a volatile liquid from a mixture by boiling and condensing its vapour in a sloping condenser.
Continuous heating with a vertical condenser so vapours condense and return to the flask, preventing loss of volatile substances.
Small porous pieces added to a liquid to promote smooth boiling and prevent violent bumping.
Distillation using a fractionating column to separate liquids with close boiling points.
8.
Which statement best describes Molecular ion peak?
Small porous pieces added to a liquid to promote smooth boiling and prevent violent bumping.
The reciprocal of wavelength (cm-1) used to report IR absorptions.
The peak in a mass spectrum at the highest m/z (ignoring M+1), giving the Mr.
Separation of a volatile liquid from a mixture by boiling and condensing its vapour in a sloping condenser.
9.
Which statement best describes Separating funnel?
Continuous heating with a vertical condenser so vapours condense and return to the flask, preventing loss of volatile substances.
Breaking of the molecular ion into a smaller cation and a radical; only the cation is detected.
Apparatus used to separate two immiscible liquid layers.
An anhydrous salt such as MgSO4 or CaCl2 that removes water from an organic liquid.
10.
Which statement best describes Fragmentation?
Breaking of the molecular ion into a smaller cation and a radical; only the cation is detected.
Separation of a volatile liquid from a mixture by boiling and condensing its vapour in a sloping condenser.
An anhydrous salt such as MgSO4 or CaCl2 that removes water from an organic liquid.
Apparatus used to separate two immiscible liquid layers.
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
Accepted payment methods