Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
Olympiad workbookNSECSolid State

The unit cell structure of a mineral perovskite crystallizes in cubic unit cell wherein calcium (filled circles) and oxide (hollow circles) constitute a cubic close packing (ccp) arrangement and titanium ion (hollow square) occupies an interstitial hole as shown below. (Charges are omitted for simplicity). The empirical formula of this compound is

Options

  1. ACa ₂ TiO ₃
  2. BCa ₄ TiO ₆
  3. CCaTiO ₃
  4. DCa ₈ TiO ₆

Correct answer

C. CaTiO ₃

Step-by-step solution

No Solution

Practice Solid State on Quantrex Academy →

More from Solid State

The crystal defect indicated in the diagram below isThe cubic unit cell of an oxide of metals A and B is as given below, in which oxygen, A and B are represented by open circles, crossed circles and dark circles respectively. The foRead carefully all the three statements on defects in solids: (i) In Frenkel defect, interstitial Ag ⁺ site is surrounded tetrahedrally by four Cl ⁻ ions and four Ag ⁺ ions, where When NiO is doped with a small quantity of Li ₂ OA crystal of KCl containing a small amount of CaCl ₂ will haveA scientist attempts to replace a few carbon atoms in 1.0 g of diamond with boron atoms or nitrogen atoms in separate experiments. Which of the following is correct?In a cubic crystal structure, divalent metal-ion is located at the body-centered position, the smaller tetravalent metal ions are located at each corner and the O ²⁻ ions are locatHgO is prepared by two different methods: one shows yellow colour while the other shows red colour. The difference in colour is due to difference in Full Solid State list All Olympiad workbook PYQs