Chemistry 5070/42 — October/November 2014

Cambridge O-Level · Alternative to Practical · worked solutions for every part, with the mark scheme

questions

marks

minutes

Topics Experimental Contexts · Analysis, Conclusions and Evaluation · Use of Techniques, Apparatus and Materials · Qualitative Analysis · Observations and Measurements · Planning Experiments and Investigations

Q17MUse of Techniques, Apparatus and MaterialsExperimental ContextsFree sample

The apparatus shown below contains aqueous propanoic acid.

Fig. 1.1

(a)

Name the apparatus.

______

(b)

What is the volume of aqueous propanoic acid in the apparatus?

______ $\text{cm}^3$

(c)

What is observed when

(i)

a few drops of litmus solution are added to aqueous propanoic acid,

______

(ii)

aqueous propanoic acid is added to a test-tube containing solid magnesium carbonate until no further reaction occurs?

______

(d)

Name the alcohol which, on oxidation, gives propanoic acid.

______

(e)

Name, and give the structure of, the ester formed when propanoic acid reacts with ethanol.

name ______

structure ______

The rest of this paper

10 more questions

Q2Qualitative Analysis · Experimental Contexts · Observations and Measurements · Analysis, Conclusions and Evaluation6M
Q3Qualitative Analysis · Planning Experiments and Investigations · Analysis, Conclusions and Evaluation7M
Q4Analysis, Conclusions and Evaluation1M
Q5Experimental Contexts1M
Q6Experimental Contexts1M
Q7Experimental Contexts1M
Q8Qualitative Analysis1M
Q9Observations and Measurements · Experimental Contexts · Use of Techniques, Apparatus and Materials · Analysis, Conclusions and Evaluation14M
Q10Qualitative Analysis · Experimental Contexts · Use of Techniques, Apparatus and Materials9M
Q11Experimental Contexts · Use of Techniques, Apparatus and Materials · Analysis, Conclusions and Evaluation · Observations and Measurements12M

Loading the full paper…