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Test: Classification of Crystalline Solids (NCERT)


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5 Questions MCQ Test Chemistry Class 12 | Test: Classification of Crystalline Solids (NCERT)

Test: Classification of Crystalline Solids (NCERT) for NEET 2023 is part of Chemistry Class 12 preparation. The Test: Classification of Crystalline Solids (NCERT) questions and answers have been prepared according to the NEET exam syllabus.The Test: Classification of Crystalline Solids (NCERT) MCQs are made for NEET 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Classification of Crystalline Solids (NCERT) below.
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Test: Classification of Crystalline Solids (NCERT) - Question 1

Which of the following statements is not correct about molecular crystals?

Detailed Solution for Test: Classification of Crystalline Solids (NCERT) - Question 1

Molecular crystals are bad conductors of electricity as the electrons are localised in the bonds.

Test: Classification of Crystalline Solids (NCERT) - Question 2

Ionic solids conduct electricity In molten state but not in solid state because

Detailed Solution for Test: Classification of Crystalline Solids (NCERT) - Question 2

Ionic solids conduct electricity in molten state since in molten state ionic solids dissociate to give free ions which in solid state are not free to move and are held together by strong electrostatic forces of attraction.

Test: Classification of Crystalline Solids (NCERT) - Question 3

Which of the solids show the following properties?
(i) Electrical conductivity
(ii) Malleability
(iii) Ductility
(iv) Fairly high melting point

Detailed Solution for Test: Classification of Crystalline Solids (NCERT) - Question 3

Metallic solids conduct electricity in molten state as well as solid state and are malleable, ductile and have fairly high melting point.

Test: Classification of Crystalline Solids (NCERT) - Question 4

The major binding force of diamond, silicon and quartz is

Detailed Solution for Test: Classification of Crystalline Solids (NCERT) - Question 4

In covalent solids, the forces of attraction are covalent bond forces.

Test: Classification of Crystalline Solids (NCERT) - Question 5

Solid X is a very hard solid which is electrical insulator in solid as well as in molten state and has extremely high melting point. What type of solid is it?

Detailed Solution for Test: Classification of Crystalline Solids (NCERT) - Question 5

Covalent solids or network solids are very hard with high melting point and are insulators in solid as well 25 in molten state.

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