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The Solid State

Question

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The appearance of colour is solid alkali metal halides is generally due to:

F- centres

Schottky defect

Frenkel defect

interstitial positions

Solution

A.

F- centres

The appearance of colour in solid alkali metal halides is generally due to F-centres.

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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