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What happens when ferrimagnetic Fe(3)O(4...

What happens when ferrimagnetic `Fe_(3)O_(4)` is heated to `850 K`?

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It becomes paramagnetic due to greater alignment of domains (spins) in direction on heating
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CENGAGE CHEMISTRY-NCERT BASED EXERCISE-Short Answer Type Questions
  1. What is energy gap in bond theory?

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  2. What is photo voltaic cell?

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  3. What happens when ferrimagnetic Fe(3)O(4) is heated to 850 K?

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  4. What happens when ferromagnetic substance is heated to high temperatur...

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  5. Which type of defect is product when NaCl is dopped with AlCl(3)?

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  6. Which point defect lowers the density of a crystal?

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  7. At what temperature range most of the metals becomes superconductors

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  8. What is curie temperature?

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  9. Name the compound that can be added to AgCl so as to produce cation va...

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  10. Which point defect does not change the density of AgCl crystals?

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  11. What other elements may be added to silicon to make electrons availabl...

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  12. What are the types of lattice imperfection found in crystals?

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  13. What is dislocation in the crystals

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  14. Which transition metal oxide has appearance and conductivity like that...

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  15. How is electrical conductivity caused in (a) semiconductors, (b) metal...

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  16. Name the compound which shows both electric and ferroelectric proporti...

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  17. Name the compound which shows anti-ferroelectric property.

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  18. When and why is molality preferred over molarity in handling solution ...

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  19. What is the effect of temperature on molarity of a solution?

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  20. Whivh aqueous solution has higher concentration:1 molar or 1 molal sol...

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