Redox 2

Which of the following is a non polar molecule

• CO₂

• NH₃

• H₂O

• CHCl₃

• A

• B

• C

• D

The most reproducible results were?

• Student A

• Student B

• Student C

• Student D

Which one is the first ionisation energy of fluorine?

• A

• B

• C

• D

Which will react with Br₂ but not I₂

• A

• B

• C

• D

Which of the following would help achieve a precise end point.

• carry out a rough titration first

• a white tile under the flask

• Reading the bottom of the meniscus on the burette.

• repeating the titration

An oxidising agent

• gains electrons and is oxidised

• loses electrons and is oxidised

• gains electrons and is reduced

• loses electrons and is reduced

• A

• B

• C

• D

A titration was carried out. A sample of orange juice was pipetted into a flask and 10cm³ water added to dilute the sample. Starch indicator was added to the flask. The mixture was then titrated in the flask using iodine solution of known concentration. Which line in the table shows the most appropriate apparatus to use when carrying out the procedure?

• A

• B

• C

• D

Which piece of apparatus could accurately measure out 45cm³ of solution?

• 50cm³ beaker

• 50cm³ pipette

• 50cm³ burette

• 50cm³ measuring cylinder