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Chemistry Hard NTS Uploaded: 04 Sep 2026

Which term describes different structural forms of the same element in the same physical state?

  • A Allotropes
  • B Isomers
  • C Isotopes
  • D Isobars
Correct Answer: Option A — Allotropes
Explanation:
Allotropes are different structural forms of the same element existing in the same physical state, such as diamond and graphite being allotropes of carbon, each with distinct physical properties due to bonding arrangement.
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