a matching puzzle by
PuzzleFast Instant Puzzle Maker
Puzzle URL
https://www.puzzlefast.com/en/puzzles/20150501536339
a matching puzzle by
PuzzleFast Instant Puzzle Maker
https://www.puzzlefast.com/en/puzzles/20150501536339
1. | black | A. | copper (II) sulphate may be present |
2. | green | B. | chloride, sulphate, nitrate and carbonate of cations of sodium, potassium, barium, lead, magnesium , calcium, zinc and aluminium may be present |
3. | white or colourless | C. | iron (II) oxide, lead sulphide and copper sulphide may be present |
4. | blue | D. | iron (II) chloride or lead (II) oxide may be present |
5. | yellow or brown | E. | copper (II) oxide, lead sulphide and copper sulphide may be present |
1. | black → E |
2. | green → C |
3. | white or colourless → B |
4. | blue → A |
5. | yellow or brown → D |