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Number of carbon atoms per unit cell of ...

Number of carbon atoms per unit cell of diamond unit cell is -

A

1

B

4

C

8

D

6

Text Solution

Verified by Experts

The correct Answer is:
B
Diamond exists as face-centred cubic unit cell. Thus, at the centre of each face one atom is present i.e., `1/2 xx 6 =3` atoms. Also, `1/8 xx 8 =1` atom is present at the corners. Hence, total no. of atoms per unit cell = 3 + 1 = 4 atoms.
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CHHAYA PUBLICATION-SOME p-BLOCK ELEMENTS-ENTRANCE (QUESTION BANK)
  1. Which of these is least likely to act as a Lewis base

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  2. Which of the following is electron deficient-

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  3. Number of carbon atoms per unit cell of diamond unit cell is -

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  4. Which of these is not a monomer for a high molecular mass silicone pol...

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  5. Which of the following structure is similar to graphite -

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  6. The basic structural unit of silicate is -

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  7. The stability of +l oxidation state among Al, Ga, In and Tl increase i...

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  8. AlF3 is soluble in HF only in presence of KF. It is due to the formati...

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  9. Boric acid is an acid because its molecule

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  10. It is because of inability of n^2 electrons of the valence shell to pa...

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  11. Which one of the following elements is unable to form MF6^(3-) ion-

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  12. The correct order of atomic radii in group-13 elements is-

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  13. The wrong statement about fullerene is-

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  14. Iodine oxidises sodium borohydride to give-

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  15. Which material is used as a neutron moderator-

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  16. For silicone which is not correct -

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  17. Which of the following is not sp^2 -hybridised

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  18. The pair of amphoteric hydroxides is -

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  19. Which of the following reactions does not take place- BF3 + F^(-) to...

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  20. Select the correct options from the following

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