MCQ
The number of valence electrons in a graphite atom is:
- A2
- B4
- C3
- D5
✓
Answer
- 4
Explanation:
Graphite is an allotrope of carbon. It is made up of all C atoms. The atomic number of carbon is 6; so, the number of valence electrons is 4.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Nitromonas bacteria convert:
- Nitrite to nitrate.
- Ammonia into nitrate.
- Ammonia into nitrite.
- Nitrite into ammonia.
A Honda City car, a Maruti Alto car, a Tata Nano car and a Mahindra Scorpio car, all are running at the same speed of 50m/s under identical conditions. If all these cars are hit from behind with the same force and they continue to move forward, the maximum acceleration will be produced in:
- Honda City.
- Maruti Alto.
- Tata Nano.
- Mahindra Scorpio.
Which of the following statement is always correct?
The chemical symbol for nitrogen gas is:
Which of the following is not an example of a motion with a constant speed but variable velocity:
Soil erosion is caused due to:
- Strong wind.
- Heavy rains.
- Keeping the fields fallow for a long.
- All of these.
Internal parasites of cattle like fluke, damage:
Atomic models have been improved over the years. Arrange the following atomic models in the order of their chronological order:
- Rutherford's atomic model.
- Thomson's atomic model.
- Bohr's atomic model.
Mucosal living of which organ differ from others in concern with number of layer of cell (simple/ strtified)?
Nucleolus is a seat of:
- Protein synthesis.
- Ribosome synthesis.
- Enzyme synthesis.
- mRNA synthesis.