Multiple choice general knowledge science & technology

which of the following is/are allotrope of carbon?

  1. nylon

  2. diamond

  3. silica

  4. graphite
Reveal answer Fill a bubble to check yourself
B,D Correct answer
Explanation

Diamond and graphite are both crystalline forms of carbon, making them allotropes - different structural arrangements of the same element. Diamond has a tetrahedral structure making it extremely hard, while graphite has layered hexagonal sheets making it soft. Nylon is a synthetic polymer (not an element), and silica is a silicon-oxygen compound (SiO2), neither of which are carbon allotropes.

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