Home
Class 12
CHEMISTRY
(i) Write the type of magnetism observed...

(i) Write the type of magnetism observed when the magnetism observed when the magnetic moments are aligned in parallel and anti parallel direction in unequal number . ltbnrgt (ii) Which stoichiometric defect decreases the density of the crytal?

Text Solution

Verified by Experts

(i) when magnetic moment is aligned in parallel direction it is called ferromagnetic and it magneic moment is aligned in antiparallel direction it is called antiferromagnetic
(ii) Due to schottky defect vacencies are formed and density decreases
Promotional Banner

Topper's Solved these Questions

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise Set - 1 Comptt.|30 Videos

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise General Instrucations|31 Videos

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise Outside Delhi : SET-II|13 Videos

  • SAMPLE PAPER 2019

    XII BOARDS PREVIOUS YEAR|Exercise SECTION: D|1 Videos

Similar Questions

Explore conceptually related problems

(i) Write the type of magnetism observed when the magnetic moments are oppsitely aligned and cancel out each other. (ii) Which stoichiometric defect does not change the density of the crystal ?

What is the value of torque when magnetic moment (m) and magnetic field are parallel or anti parallel?

When a current carrying coil is placed in a uniform magnetic field with its magnetic moment anti-parallel to the field.

Assertion:Substances like Fe_3O_4 and MgFe_2O_4 lose ferrimagnetism on heating and become paramagnetic Reason : Magnetic moments of the domains in these substances are aligned in parallel and antiparallel directions in unequal numbers.

A : Fe_(3)O_(4) is ferrimagnetic at room temperature but becomes paramagnetic at 850 K. R : The magnetic moment in Fe_(3)O_(4) are aligned equally in parallel and antiparallel directions which on heating randomise.

Statement I : In the case of anti-ferromagnetic substances, magnetic moment is zero. Statement II : Domains get oriented in the direction of applied magnetic field.

When a material is used in a magnetic field B,a magnetic moment proportional to B but opposite in direction is induced.The metal is