Which one of the following is BCC?
Correct answer: D. All of the above
- A. Fe
- B. Cr
- C. Tungsten
- D. All of the above
Explanation
The correct answer is 'All of the above' because Iron (Fe), Chromium (Cr), and Tungsten all have a Body-Centred Cubic (BCC) crystal structure. BCC is one of the most common crystal structures found in metals, where each atom is at the centre of a cube formed by eight other atoms. Iron is BCC at room temperature but transitions to FCC at higher temperatures. Chromium and Tungsten maintain their BCC structure across a wide range of temperatures, contributing to their unique properties like hardness and high melting points.
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