Study the given flow chart and identify W, X, Y and Z.
| W | X | Y | Z | |
| A | Honey | Graphite | Coin | Cooking oil |
| B | Dry ice | Plasticine | Sand | Iron nail |
| C | Mercury | Soap | Mirror | Cork |
| D | Petrol | Aluminium | Graphite | Diamond |
Study the given flow chart and identify W, X, Y and Z.
| W | X | Y | Z | |
| A | Honey | Graphite | Coin | Cooking oil |
| B | Dry ice | Plasticine | Sand | Iron nail |
| C | Mercury | Soap | Mirror | Cork |
| D | Petrol | Aluminium | Graphite | Diamond |