CBSE Class 12 Chemistry Solid State Questions

School Assignments for Class 12 Chemistry: Unit 01 Solid State

Explore structured practice materials through the CBSE Class 12 Chemistry Solid State Questions. Tailored for Class 12 learners, utilizing these Chemistry assignments ensures thorough preparation and strengthens foundational knowledge before final CBSE evaluations.

Practice Class 12 Chemistry Assignments: Unit 01 Solid State

Access the complete assignment PDF for Class 12 Chemistry below. Regular practice with these targeted academic tasks builds familiarity with standard question patterns and helps secure higher marks in final school evaluations.

VSA QUESTIONS (1 - MARK QUESTIONS)
 
1. What are anistropic substances.
 
2. Why are amorphous solids isotropic in nature?
 
3. Why glass is regarded as an amorphous solid?
 
4. Define the term 'crystal lattice.’
 
8. Define the term voids.
 
9. What type of stochiometric defect is shown by (i) ZnS and (ii) CsCl?
 
[Hint. : (i) Frenkel defect (ii) Schottky defect]
 
10. If the formula of a compound is A2B, which sites would be occupied by A ions?
 
[Hint. : Number of A ions is double to B ions, so ions will occupy tetrahedral voids]
 
11. What is the coordination number for
 
(a) an octahedral void
 
(b) a tetrahedral void.
 
[Hint. : (a) 6; (b) 4 ]
 
12. How many octahedral voids are there in 1 mole of a compound having cubic closed packed structure? [Ans. : 1 mole]
 
13. Arrange simple cubic, bcc and fcc lattice in decreasing order of the fraction of the unoccupied space.
 
[Hint. : fcc < bcc < sc]
 
14. How much space is empty in a hexagonal closed packed solid?
 
15. An element crystallises separately both in hcp and ccp structure. Will the two structures have the same density? Justify your answer.
 
[Hint : Both crystal structures have same density because the percentage of occupied space is same.]

16. In NaCl crystal, Cl– ions form the cubic close packing. What sites are occupied by Na+ ions.

17. In Corundum, O2– ions from hcp and Al3+ occupy two third of octahedral voids. Determine the formula of corundum. [Ans. : Al2O3]

18. Why is Frenkel defect not found in pure alkali metal halides?

19. Which point defect is observed in a crystal when a vacancy is created by an atom missing from a lattice site.
 
20. Define the term ‘doping’.

21. Why does conductivity of silicon increase with the rise in temperature.

22. Name the crystal defect which lowers the density of an ionic crystal.

[Ans. : Schottky defect]

23. What makes the crystal of KCl sometimes appear violet?

[Hint : F-Centre]

24. Which point defect in ionic crystal does not alter the density of the relevant solid?

25. Name one solid in which both Frenkel and Schottky defects occur.

26. Which type of defects are known as thermodynamic defects?

[Ans. : Stoichiometric defects]

27. In a p-type semiconductor the current is said to move through holes. Explain.

28. Solid A is very hard, electrical insulator in solid as well as in molten state and melts at extremely high temperature. What type of solid is it?

[Hint : Covalent solid]
 

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Download Practice Assignments: Class 12 Chemistry Unit 01 Solid State

Chapter Practice Questions for Class 12 Chemistry

Explore reliable practice questions for Unit 01 Solid State tailored for Class 12 learners. Use these structured worksheets to evaluate preparedness and strengthen core problem-solving skills.

Why Practice Class 12 Chemistry Assignments?

  • Curriculum Standards: Assignments match modern CBSE sample formats to ensure relevant preparation.
  • Thorough Revision: Detailed problem sets reinforce core concepts and eliminate conceptual weak spots.
  • Execution Speed: Timed practice with assignment sets sharpens overall response timing.

How to Approach Chemistry Unit 01 Solid State Assignments

  1. Concept Foundation: Review the NCERT book for Class 12 Chemistry thoroughly before diving into assignment tasks.
  2. Self-Evaluation: Solve exercises independently before inspecting professional answer guides.
  3. Progress Monitoring: Note down complex formulas or concepts, clearing them up using available online practice aids.

FAQs

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Are the assignments for Class 12 Chemistry Unit 01 Solid State based on the 2026 exam pattern?

Yes. These assignments are designed as per the latest CBSE syllabus for 2026. We have included huge variety of question formats such as MCQs, Case-study based questions and important diagram-based problems found in Unit 01 Solid State.

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Practicing topicw wise assignments will help Class 12 students understand every sub-topic of Unit 01 Solid State. Daily practice will improve speed, accuracy and answering competency-based questions.

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