Raghav categorised the following household items into acids and bases.
| Acids | Bases |
| 1.Lemon | 4.Baking soda |
| 2.Antacid | 5.Vinegar |
| 3.Tea | 6.Curd |
Which of them are placed under the wrong category?
A 3 and 5
B 2 and 6
C 3, 4 and 5
D 2, 5 and 6
Raghav categorised the following household items into acids and bases.
| Acids | Bases |
| 1.Lemon | 4.Baking soda |
| 2.Antacid | 5.Vinegar |
| 3.Tea | 6.Curd |
Animal X hatches from eggs at a place P and goes to Q to spend its life. When reproduction time comes, it goes back to P, lays eggs and then dies.
Now, select the correct option regarding it.
| X | P | Q | |
| A | Penguin | South pole | North pole |
| B | Siberian crane | Western Siberia | India |
| C | Salmon | River | Ocean |
| D | Arctic tern | North pole | South pole |