2014Science
Which one of the following is not an explosive matter?
GS Paper I (General Studies)
Narrow by subject and work through the questions in order.
Which one of the following is not an explosive matter?
| List - I | List - II |
| A. Vitamin B12 | 1. Magnesium |
| B. Haemoglobin | 2. Cobalt |
| C. Chlorophyll | 3. Copper |
| D. Brass | 4. Iron |