Carbon & Its Compounds
1. What is the most common form of carbon found in nature?
✅ Correct Answer: B) Graphite
🔹 Graphite is the most stable and abundant form of carbon in nature.
🔹 Graphite is the most stable and abundant form of carbon in nature.
2. Which of the following is NOT an organic compound?
✅ Correct Answer: C) Carbon Dioxide
🔹 Carbon dioxide (CO₂) is an inorganic compound as it lacks hydrogen-carbon bonds.
🔹 Carbon dioxide (CO₂) is an inorganic compound as it lacks hydrogen-carbon bonds.
3. Which element is always present in organic compounds?
✅ Correct Answer: B) Carbon
🔹 Organic chemistry is based on carbon compounds, making carbon a mandatory element.
🔹 Organic chemistry is based on carbon compounds, making carbon a mandatory element.
4. The hardest natural substance known is?
✅ Correct Answer: C) Diamond
🔹 Diamond is the hardest naturally occurring material due to its strong carbon bonds.
🔹 Diamond is the hardest naturally occurring material due to its strong carbon bonds.
5. Which of the following is a saturated hydrocarbon?
✅ Correct Answer: A) Methane
🔹 Methane (CH₄) is a saturated hydrocarbon (alkane) with only single bonds.
🔹 Methane (CH₄) is a saturated hydrocarbon (alkane) with only single bonds.