The unit cell present in the crystal lattice of diamond is

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face-centred cube

trigonal

tetragonal

hexagonal

answer is A.

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Detailed Solution

The unit cell present in the crystal lattice of diamond is face-centred cube.

Face Centered Cubic is referred to as FCC. It is a particular kind of atomic configuration that is "tightly" packed (atomic packing factor = 0.74). The formal definition of FCC is an eight-corner cubic lattice with face locations that are entirely equal to each of the eight corners.

Hence the correct option is A.

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