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Test: The Solid State (Old NCERT) - NEET MCQ


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25 Questions MCQ Test Chemistry Class 12 - Test: The Solid State (Old NCERT)

Test: The Solid State (Old NCERT) for NEET 2024 is part of Chemistry Class 12 preparation. The Test: The Solid State (Old NCERT) questions and answers have been prepared according to the NEET exam syllabus.The Test: The Solid State (Old NCERT) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: The Solid State (Old NCERT) below.
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Test: The Solid State (Old NCERT) - Question 1

Substances that are strongly attracted by applied magnetic field and can be permanently magnetized are

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Ferromagnetic substance get permanently magnetised in applied Magnetic Field.

Test: The Solid State (Old NCERT) - Question 2

Which type of solid conduct electricity in molten state but not in solid state?

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In molten state ions can exist so they can conduct electricity

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Test: The Solid State (Old NCERT) - Question 3

Yellow colour of NaCl crystals in sodium vapour is due to

Detailed Solution for Test: The Solid State (Old NCERT) - Question 3
  • This yellow colour is due to metal excess defect of anionic valency.
  • Na+ion deposited on the surface of crystal of NaCl . The Cl-ion diffused to form NaCl. This happens by loss of electron from Na to Na+.
  • The released electro diffused into the crystal and occupy anionic site called F center which imparts yellow colour to NaCl.
Test: The Solid State (Old NCERT) - Question 4

Dislocation defect is also known as

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In frenkel defect cation gets dislocated from its position.

Test: The Solid State (Old NCERT) - Question 5

Defects in solids can be studied using

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All of the above mentioned methods are used to detect the basic structure of the sample, hence can easily detect the defects present in a sample.

Test: The Solid State (Old NCERT) - Question 6

Point defect is also known as

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Point defects are zero dimensional defects as they cannot extend in any direction in space. Point defects occur where an atom is missing or misplaced in a crystal lattice. The limit of the size of point defect is not defined.

Test: The Solid State (Old NCERT) - Question 7

Solid X is a very hard electrical insulator in solid as well as in molten state. It melts at extremely high temperature. Solid X is a

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Covalent solid doesnot conduct electricity in molten and solid state.

Test: The Solid State (Old NCERT) - Question 8

Nature of binding forces present in carbondioxide molecules in solid state are?

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O=C=O<−>−O−C+=O

Test: The Solid State (Old NCERT) - Question 9

What type of interaction hold the molecules together in a polar molecular solid?

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Polar molecule will act as a dipole.

Test: The Solid State (Old NCERT) - Question 10

An atom located at the body center of a cubic unit cell is shared by

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In body centred cubic cell, an atom at the body-centre is shared by 1 unit cell. Thus, this atom contributes one atom to the unit cell.

Test: The Solid State (Old NCERT) - Question 11

Ionization enthalpy is lowest in

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Metals have low ionization energy because of there tendency to lose electrons.

Test: The Solid State (Old NCERT) - Question 12

The coordination number of AB having rock salt geometry is

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NaCl has rock salt structure. Coordination No. is 6.

Test: The Solid State (Old NCERT) - Question 13

MgO has the structure of NaCl. The coordination number of the ions in MgO is

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Coordination No. in NaCl is 6.

Test: The Solid State (Old NCERT) - Question 14

Type of stoichiometric defect shown by ZnS is

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ZnS shows Frenkel defect.

Test: The Solid State (Old NCERT) - Question 15

A metal crystallizes with a face-centered cubic lattice. The edge of the unit cell is 408 pm. The diameter of the metal atom is

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Test: The Solid State (Old NCERT) - Question 16

An element forms a cubic unit cell with edge length 405 pm. Molar mass of this element is 2.7 X 10-2 Kg/mol and its density is given as 2.7 X 10Kg/m3. How many atoms of this elements are present per unit cell.

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Test: The Solid State (Old NCERT) - Question 17

A group of 14 element is converted into n – type semiconductor by dopping it with

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Group 15 doping on group 14 element forms n type semiconductor due to excess electrons.

Test: The Solid State (Old NCERT) - Question 18

Group 14 element is converted to p – type semiconductor by dopping it with

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Doping of group 14 elements with group 13 forms p type semiconductor.

Test: The Solid State (Old NCERT) - Question 19

Giant ionic structures is also name given to

Detailed Solution for Test: The Solid State (Old NCERT) - Question 19
  • An ionic compound is a giant structure of ions.
  • The ions have a regular, repeating arrangement called an ionic lattice .
  • The lattice is formed because the ions attract each other and form a regular pattern with oppositely charged ions next to each other.
Test: The Solid State (Old NCERT) - Question 20

A substance forms face centered cubic crystals. Its density is 1.984 g/cm3 and the length of the edge of the unit cell is 630 pm. Calculate the molar mass in g/mol?

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Test: The Solid State (Old NCERT) - Question 21

The hardest substance among the following is

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It has network Structure.

Test: The Solid State (Old NCERT) - Question 22

The following diagram shows :

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Extra electron is present at anionic site.

Test: The Solid State (Old NCERT) - Question 23

In n – type semiconductor current is carried by

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N type semiconductors have excess electrons.

Test: The Solid State (Old NCERT) - Question 24

The following diagram shows

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A Frenkel defect or dislocation defect is a type of point defect in crystalline solids named after its discoverer Yakov Frenkel. The defect forms when an atom or smaller ion (usually cation) leaves its place in the lattice, creating a vacancy, and becomes an interstitial by lodging in a nearby location.

Test: The Solid State (Old NCERT) - Question 25

Which transition metal oxide has appearance and conductivity like that of copper?

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Rhenium oxide and cooper oxide have same appearance and conductivity.

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