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.
Last updated
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.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A crystal is made up of _ ?
A crystalline solid differs from an amorphous solid in that a crystalline solid
A malleable solid is one which can be_________________?
A metal sulfate contains 9.87% of M. This sulfate is isomorphous with ZnSO4,.7H2O. Determine the atomic weight of the metal M.
A process used for the Concentration of Ore is________?