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The Solid State

Question

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Which of the following lattices has the highest packing efficiency:
simple cubic
body-centred cubic
hexagonal close packed lattice

Solution

C.

hexagonal close packed lattice

Hexagonal close packed lattice has the highest packing efficiency (74%).

Some More Questions From The Solid State Chapter

Solid A is a very hard, electrical insulator in solid as well as in molten state and melts at extremely high temperature. What type of solid is it?

Ionic solids conduct electricity in liquid state but not in solid state. Explain.

What type of solids are electrical conductors, malleable and ductile?

Give the significance of a 'lattice point'.

Name the parameters that characterize a unit cell.

Distinguish between Hexagonal and monoclinic unit cells.

Distinguish between Face-centred and end-centred unit cells.

What is the two-dimensional coordination number of a molecule in square close packed layer ?

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