Which of the following statement(s) is/are correct? A. Ferromagnetic substances are permanently magnetised. B. AgBr shows both Schottky and Frenkel defects. C. One tetrahedral voids per atom is present in HCP structure.
Correct answer: D. A & B
- A. A & C
- B. A, B & C
- C. B only
- D. A & B
Explanation
In presence of an external magnetic field, ferromagnetic substances are strongly magnetized and even after the removal of magnetic field, they remain magnetized. Because of precipitation of both silver and bromide ion, AgBr shows Schottky defect and due to small size of silver ion, it occupies interstitial site hence it also shows frenkel defect. Thus, both (A) & (B) statements are correct. Statement C is incorrect as there are 12 tetrahedral voides per atom in HCP structure.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Crystalline Solids
Crystalline solids contain particles arranged in a regular repeating lattice described by a unit cell. Their study includes coordination number, packing efficiency, density, anisotropy, cleavage, polymorphism and common crystal systems, along with ionic, molecular, covalent network and metallic crystals. Crystalline order differs from the random arrangement of amorphous solids.
Practise Solids
357 free Solids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Crystalline Solids questions
In a solid lattice, the cation has left a lattice site and is located at an interstitial position, the lattice defect is:
The crystal system having a = β ≠ c and α = β = γ = 90° is:
Which type of magnetic behaviour is shown by magnetite (Fe3O4)?
Cubic void is present in:
Transition temperature is shown by which of the following pairs:
Transition temperature of sulphur is: