Question:

Statement I: Boron does not exhibit allotropy
Statement II: Boron is extremely hard and black coloured solid

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Allotropy is common in elements like carbon, sulfur, and boron — be cautious with such general statements.
Updated On: May 15, 2025
  • Both I \& II are correct
  • Both I \& II are not correct
  • I is correct but II is not correct
  • I is not correct but II is correct
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The Correct Option is D

Solution and Explanation

Statement I is incorrect: Boron does exhibit allotropy (e.g., crystalline and amorphous forms).
Statement II is correct: Crystalline boron is extremely hard and appears black in color.
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