Methods of purification — Paper 1 · IGCSE Physical Science 0652

1 Which method would be most suitable for obtaining a sample of pure water from aqueous sodium chloride? A chromatography B distillation C electrolysis D precipitation

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2005

2 An ink can be separated by chromatography. Which diagram shows the correct way to set up the apparatus? A B spot of ink spot of ink solvent solvent C D spot of ink spot of ink solvent solvent

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2006

18 The diagram shows the separation of crude oil into fractions. petrol X Y crude oil Z bitumen What could X, Y and Z represent? X Y Z A diesel lubricating oil paraffin B lubricating oil diesel paraffin C paraffin lubricating oil diesel D paraffin diesel lubricating oil

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2010

18 The diagram represents an apparatus used in the fractional distillation of crude oil. From which position is methane obtained? A B crude oil C heater at 400 °C D

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2011

2 The diagram shows the chromatogram obtained using five felt-tip pens. P Q R S T Which statement about the pens is not correct? A One of the dyes is found in three pens. B Pen R contains a mixture of dyes. C Three pens contain two dyes. D Two pens contain only one dye.

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2015

2 The diagram shows the chromatogram obtained using five felt-tip pens. P Q R S T Which statement about the pens is not correct? A One of the dyes is found in three pens. B Pen R contains a mixture of dyes. C Three pens contain two dyes. D Two pens contain only one dye.

1 marks

Answer: B

This question in 0652/12 Oct/Nov 2015

2 The chromatogram of black ink and three coloured dyes, X, Y and Z, is shown. black X Y Z ink Which colours make up the black ink? A X and Y only B X and Z only C X, Y and Z D Z only

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2016

2 The chromatogram of black ink and three coloured dyes, X, Y and Z, is shown. black X Y Z ink Which colours make up the black ink? A X and Y only B X and Z only C X, Y and Z D Z only

1 marks

Answer: B

This question in 0652/12 Oct/Nov 2016

17 The fractional distillation of petroleum is shown. From which position is methane obtained? A B C petroleum heater at 400 °C D

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2017

2 The diagram shows a chromatogram obtained using five felt-tip pens. P Q R S T Which statement about the pens is not correct? A One of the dyes is found in three pens. B Pen R contains a mixture of dyes. C Three pens contain two dyes. D Two pens contain only one dye.

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2018

2 The diagram shows a chromatogram obtained using five felt-tip pens. P Q R S T Which statement about the pens is not correct? A One of the dyes is found in three pens. B Pen R contains a mixture of dyes. C Three pens contain two dyes. D Two pens contain only one dye.

1 marks

Answer: B

This question in 0652/12 Oct/Nov 2018

2 Which process is used to separate the components of petroleum? A chromatography B crystallisation C filtration D fractional distillation

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2019

2 The diagram shows a chromatogram of several different inks. X 1 2 3 Which statement is correct? A 2 is a pure substance. B 3 is a pure substance. C X is a mixture of 1 and 2. D X is a mixture of 2 and 3.

1 marks

Answer: B

This question in 0652/12 Oct/Nov 2019

3 Food colouring R is compared with food colourings S, T, U and V using chromatography. The chromatogram is shown. R S T U V Which food colourings are present in food colouring R? A S and T B S and U C S and V D U and V

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2021

1 The chromatogram of a black ink and three coloured dyes, X, Y and Z, is shown. black X Y Z ink Which colours make up the black ink? A X and Y only B X and Z only C X, Y and Z D Z only

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2022

19 The diagram shows the fractional distillation of petroleum. fuel gas V W X Y petroleum Z Which row shows the correct use for the fraction? fraction use A V aircraft fuel B W making roads C X diesel fuel D Z making polishes and waxes

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2022

3 The diagram shows a chromatogram of several different inks. X 1 2 3 Which statement is correct? A 2 is a pure substance. B 3 is a pure substance. C X is a mixture of 1 and 2. D X is a mixture of 2 and 3.

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2024