Q2. A student investigated food dyes using paper chromatography. This is the method used. 1. Put a spot of food colouring X on the start line.

This question is about paper chromatography. A food colouring contains a dye. (a) Plan an investigation to determine the Rf value for the dye in this food.

Q6: Give two uses of chromatography: (2 marks) Q7: Name the two phases when performing chromatography. (2 marks) Q9: How will a pure compound look when run on ...

These practice questions can be used by students and teachers and is suitable for GCSE AQA Chemistry topic Questions 8462. Level: GCSE AQA Chemistry 8462.

(d) Two types of chromatography are gas chromatography and paper chromatography. Give one advantage of gas chromatography compared with paper chromatography.

(e) A mixture of three compounds was analysed by paper chromatography using a non-polar solvent. The resulting chromatogram is shown. 3. 2. 1 solvent front.

(2 marks) Q7: Name the two phases when performing chromatography. A= Stationery phase (1 mark) and mobile phase (1 mark) (2 marks) Q8: Complete the equation.

Question Paper. Paper Type. Multiple Choice. 20 minutes. /16. /100. Time ... For more awesome GCSE and A level resources, visit us at www.savemyexams.co ...

Separation techniques gcse questions. Gcse separation techniques questions and answers pdf. A table with five options about paper chromatography: To distinguish ...

1. Use a ruler to draw a horizontal pencil line 2 cm from a short edge of the chromatography paper. Mark five pencil spots at equal intervals across ...