EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Solid State>JEE Main 18 March 2021 Shift 1>Q 2

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IMPORTANT

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In a binary compound, atoms of element $A$ form a hcp structure and those of element $M$ occupy $2 / 3$ of the tetrahedral voids of the hcp structure. The formula of the binary compound is:

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Important Questions on Solid State

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Solid State>JEE Main 17 March 2021 Shift 2>Q 3

KBr

is doped with

10^{- 5}

mole percent of

{SrBr}_{2}

The number of cationic vacancies in

1 g

of

KBr

crystal is

10^{14}

. (Round off to the Nearest Integer). [Atomic Mass :

K = 39.1 u, Br = 79.9 u

,

N_{A} = 6.023 \times 10^{23}]

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Solid State>JEE Main 16 March 2021 Shift 2>Q 4

Ga

(atomic mass

70 u

) crystallizes in a hexagonal close packed structure. The total number of voids in

0.581 g

of

Ga

is ________

\times 10^{21}

. (Round off to the Nearest Integer).

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Solid State>JEE Main 16 March 2021 Shift 1>Q 5

A certain element crystallises in a bcc lattice of unit cell edge length 27 $\overset{o}{A}$ . If the same element under the same conditions crystallises in the $fcc$ lattice, the edge length of the unit cell in $\overset{o}{A}$ will be __________. (Round off to the Nearest Integer).

[Assume each lattice point has a single atom]

[Assume $\sqrt{3} = 1.73, \sqrt{2} = 1.41$ ]

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Solid State>JEE Main - 9th January 2020 Shift 1>Q 6

‘

X

’ melts at low temperature and is a bad conductor of electricity in both liquid and solid state.

X

is:

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Solid State>JEE Main - 9th January 2019 Shift 2>Q 7

At

100^{o} C,

copper

(C u)

has

F C C

unit cell structure with cell edge length of

x Å

. What is the approximate density of

C u

(in

g c m^{- 3}

) at this temperature?

[A t o m i c M a s s o f C u = 63.55 u]

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Solid State>JEE Main - 9th January 2019 Shift 1>Q 8

The one that is extensively used as a piezoelectric material is:

EASY

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Solid State>JEE Main - 9th April 2019 Shift 2>Q 9

The amorphous form of silica is:

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Solid State>JEE Main - 9th April 2014>Q 10

In a face centered cubic lattice atoms A are at the corner points and atoms B at the face centered points. If atom B is missing from one of the face centered points, the formula of the ionic compound is :