AP EAMCET Engineering 20 Apr 2019 Shift 2 Paper

Section: Chemistry

Question : 139 of 160

Marks: +1, -0

Which one of the following statements is not correct?

Schottky defect in ionic solids does not change the density of the crystal
Packing efficiency is the percentage of total space filled by the particles
Ill body centered cubic unit cell, the relationship between atomic radius (r) and the edge length (a) is, r =
√3
4
a
Photovoltaic cell is used for conversion of light energy into electrical energy

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