Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-2>Q 29

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A metal crystallises in $bcc$ . Find the $%$ fraction of edge length not covered and also $%$ a fraction of edge length converted by the atom is:

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Important Questions on Solid State

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Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-2>Q 30

Select the correct statements about three dimensional HCP system :

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Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-2>Q 34

Which of the following is/are correct?

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Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-2>Q 35

Which of the following statements are true about semiconductors?

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Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-3>Q 3

In a solid

AB

having the

NaCl

structure,

A

atoms occupies the corners of the cubic unit cell. If all the face- centered atoms along one of the axes are removed, then the resultant stoichiometry of the solid is_______.

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Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-3>Q 4

A substance

A_{x} B_{y}

crystallizes in a face-centred cubic

(FCC)

lattice in which atoms

' A'

occupy each corner of the cube and atoms

' B'

occupy the centres of each face of the cube. Identify the correct composition of the substance

A_{x} B_{y}

.

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Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-3>Q 5

Marbles of diameter

10 mm

each are to be arranged on a flat surface so that their centres lie within the area enclosed by four lines of length each

40 mm

. Sketch the arrangement that will give the maximum number of marbles per unit area, that can be enclosed in this manner and deduce the expression to calculate it.

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Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-3>Q 7

In which of the following compounds the cations are present in alternate tetrahedral voids

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Alpha Question Bank for Engineering: Chemistry>Chapter 7 - Solid State>Exercise-3>Q 11

The correct statement(s) regarding defects in solids is(are):