MCQ
Stock notations are used to specify the oxidation numbers of ____________.
- Ametalloids
- B"O" in peroxides and superoxides
- Cinert gases
- ✓metals
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'Biotechnology is the application of scientific and engineering principles to the processing of materials by biological agents to provide goods and service to the human welfare'.
| Column I | Column II |
| i. Heterodont | a. Teeth embedded in separate sockets in jaw bone |
| ii. Diphyodont | b. Four sets of teeth |
| iii. Thecodont | c. Two sets of teeth in lifetime |