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The Solid State

Question

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A solid compound XY has NaCl structure. If the radius of the cation is 100 pm, the radius of the anion (Y^-) will be

275.1 pm

322.5 pm

241.5 pm

165.7 pm

Solution

C.

241.5 pm

Radius space ratio space of space NaCl space like space crystal space space equals space straight r to the power of plus over straight r to the power of minus space equals space 0.414 or space straight r to the power of minus space equals space fraction numerator 100 over denominator 0.414 end fraction space equals space 241.5 space pm

Some More Questions From The Solid State Chapter

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 ?

A compound is formed by two elements M and N. The element N forms ccp and atoms of M occupy 1/3 of tetrahedral voids. What is the formula of the compound?

Which of the following lattices has the highest packing efficiency:

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