Chemistry 0620 · IGCSE · Chromatography

Chromatography — practice question

(a)[1]

On Fig. 4.1, circle one functional group that shows that this compound is unsaturated.

(b(i))[1]

Deduce which plant, Q, R, S or T, has the largest number of coloured compounds.

(b(ii))[1]

State which two plants, Q, R, S or T, contain exactly the same coloured compounds. ............... and ...............

(b(iii))[1]

State what is meant by the term solvent.

(c(i))[2]

Finish the word equation for photosynthesis. [BLANK] + [BLANK] → glucose + oxygen

(c(ii))[1]

Name one additional substance that is necessary for photosynthesis.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: draw a circle around one C=C bond, or around both C=C bonds

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI