List I | List II | ||
---|---|---|---|
A | The structures used for storing of food. | I | Gizzard |
B | Ring of 6-8 blind tubules at junction of foregut and midgut. | II | Gastric Cacca |
C | Ring of 100-150 yellow coloured thin filaments at junction of midgut and hindgut. | III | Malpighian tubules |
D | The structures used For grinding the food. | IV | Crop |
Which of the following compounds can exhibit geometrical isomerism, and why?
1) 2-butene
2) 1-butene ?
3) Pent-2-ene
4) But-2-yne