Question

In which of the following sets, allotropes of carbon are correctly matched with their uses?

• A. Graphite - Crucibles
• B. i, iii only
• C. ii, iii only
• D. i, ii, iii only

Hint:

Graphite is used for high-temperature applications like crucibles, activated charcoal is used for adsorption processes like water filtration, and carbon black is a fuel and reinforcing agent in rubber.

Answer 1

The Correct Option is D

Step 1: Understanding Allotropes of Carbon and Their Uses - Graphite: Graphite is widely used in the manufacturing of crucibles, which are used for melting metals, due to its high melting point and good conductivity. This makes statement (i) true. - Activated Charcoal: Activated charcoal is commonly used in water filtration processes because of its high surface area and its ability to adsorb impurities. This makes statement (ii) true. - Carbon Black: Carbon black is a fine powder used primarily as a fuel and also as a reinforcement agent in rubber products like tires. This makes statement (iii) true.
Step 2: Conclusion 1st and 2nd statement is correct, so the correct answer is (i, ii only).