In hcp and ccp structures, only 68% of the total space is filled by atoms.
A.
False
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The size of an octahedral hole is less than that of tetrahedral hole.
A.
False
In the crystal structures of sodium chloride, the arrangement of CI– ions is bcc.
A.
False
When electrons are trapped in the crystal in the anionic vacancy, the defect is known as F-centres.
A.
True
Dimagnetic substances are strongly attracted by magnetic field.
A.
False
