111. |
The values of α, β, γ in KNO3 and ZnO is _____ and _____ respectively.
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Answer:
Option (c) |
112. |
In which ionic solid the distance between cation and anion is maximum ?
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Answer:
Option (b) |
113. |
In fcc arrangement one unit cell is surrounded by how many spheres in the same layer ?
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Answer:
Option (a) |
114. |
In NaCl the co-ordination number of 'Na+ is _____
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Answer:
Option (c) |
115. |
One cubic structure contains X, Y and Z atoms. X-atoms are at the corner of the cube, Y atoms are at the centre and Z atoms are at the face-centre then the formula of the solid is _____
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Answer:
Option (b) |
116. |
Metal having hcp structure has co-ordination number _____
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Answer:
Option (a) |
117. |
The number of ions in unit cell of NaCl is _____
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Answer:
Option (b) |
118. |
The number of valence electrons in impurity which is added in Si to prepare N-type semiconductor is _____
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Answer:
Option (b) |
119. |
In one solid, A atoms are at face-centres while B atoms are at the edges of sides then the formula of the solid is _____
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Answer:
Option (d) |
120. |
If a = b ≠ c and α = β = γ = 90° then the crystal system is _____
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Answer:
Option (c) |