EASY
12th West Bengal Board
IMPORTANT
Earn 100

At what temperature ferrimagnetic substance, Fe3O4 changes to paramagnetic?

Important Questions on Solid State

EASY
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 1 - Solid State>REVIEW EXERCISES>Q 10
What type of stoichiometric defects are noticed in crystals?
EASY
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 1 - Solid State>REVIEW EXERCISES>Q 11
Name the point defect that occurs in a crystal of zinc sulphide.
EASY
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 1 - Solid State>REVIEW EXERCISES>Q 11
What are interstitials in a crystal?
EASY
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 1 - Solid State>REVIEW EXERCISES>Q 12
What is a semiconductor? Name the two main types of semiconductors.
EASY
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 1 - Solid State>REVIEW EXERCISES>Q 13
Non-stoichiometric cuprous oxide Cu2O can be prepared in laboratory. In this oxide, copper to oxygen ratio is slightly less than 2: 1. Can you account for the fact that this substance is a p-type semiconductor?
EASY
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 1 - Solid State>REVIEW EXERCISES>Q 14
Ferric oxide crystallises in a hexagonal close-packed array of oxide ions with two out of every three octahedral holes occupied by ferric ions. Derive the formula of the ferric oxide.
EASY
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 1 - Solid State>REVIEW EXERCISES>Q 15
Classify if Ge doped with In is either a p-type or a n-type semiconductor.
EASY
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 1 - Solid State>REVIEW EXERCISES>Q 15

Classify if B doped with Si is either a p-type or a n-type semiconductor.