Ferromagnetic substances show a sharp decrease in magnetic susceptibility above a certain temperature known as:
Curie temperature
Néel temperature
Critical temperature
Transition temperature
Related Questions
Which of the following is a covalent solid
NaCl
SiO2
Fe
H2O
Which one of the following is a covalent crystal?
Rock salt
Ice
Quartz
Dry ice
Which of the following is a covalent solid
Diamond
Sodium Chloride (NaCl)
Iron (Fe)
Potassium Chloride (KCl)
Amorphous substances show (i) Short and long range order (ii) Short range order (iii) Long range order (iv) Have no sharp melting point
(i)and (iii) are correct
(i)and (ii) are correct
(ii)and (iii) are correct
(ii)and (iv) are correct
Which among the following will show anisotropy?
Glass
Plastic
Barium chloride
Wood
show :
Isomorphism
Polymorphism
Allotropism
Ferromagnetism
The three states of matter are solid, liquid and gas, which of the following statements are correct about them?
Gases and liquids have viscosity as a common property
The molecules in all the three states possess random translational motion
Gases cannot be converted into solids without passing through the liquid phase
Solids and liquids have vapour pressure as a common property
Which of the following statements is INCORRECT regarding amorphous solids?
They lack long-range order.
They soften over a range of temperatures.
They are isotropic.
They have a sharp melting point.
Which of the following will show anisotropy?
Glass
Wood
Paper
Graphite is a good conductor of electricity. This property is primarily due to:
Strong covalent bonds within layers
Weak van der Waals forces between layers
The presence of delocalized electrons
Its layered structure
