Subject :NSO Class : Class 7
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
Ans 1:
Class : Class 9
Ans 2:
Class : Class 7
answer is D