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CBSE - XII Science - Chemistry - The Solid State
why does salt appear yellow in colour when Na vapours are passed over it ?
Asked by bobbyayana
12th February 2021,
12:10 PM
CBSE - XII Science - Chemistry - The Solid State
vacancy defects
Asked by oriliyum8
7th December 2020,
10:28 PM
CBSE - XII Science - Chemistry - The Solid State
what metal excess defects? explain with example
Asked by Avadhut Katkar
23rd August 2018,
6:48 PM
CBSE - XII Science - Chemistry - The Solid State
Examine the given defective crystal : X+ Y- X+ Y- X+ Y- X+ X+ Y- O Y- X+ Y- X+ Y- X+ Y- X+ Y- X+ Y- X+ Y- X+ Y- X+ Y- X+ Y- Answer the following questions : (a) Is the above defect stoichiometric or non stoichiometric ? (b) Write the term used for this type of defect. (c) Why do silver halides show this type of defect ?
Asked by santrarindam2002
19th June 2018,
10:34 AM
CBSE - XII Science - Chemistry - The Solid State
what is domain in magnatic properties of solids ?
Asked by gargimoitreyee
12th March 2018,
11:54 PM
CBSE - XII Science - Chemistry - The Solid State
What is the colour of lithium chloride crystal in excess of lithium
Asked by studentrifath
16th February 2018,
12:25 PM
CBSE - XII Science - Chemistry - The Solid State
How is it possible that AgBr shows both, Frenkel and Schottky defect?
Asked by Sudesh
16th September 2016,
9:41 PM
CBSE - XII Science - Chemistry - The Solid State
With example explain F-center.
Asked by Topperlearning User
17th June 2016,
10:43 AM
CBSE - XII Science - Chemistry - The Solid State
Magnetite is ferrimagnetic on heating what changes are expected.
Asked by Topperlearning User
17th June 2016,
10:30 AM
CBSE - XII Science - Chemistry - The Solid State
Explain Non-stoichiometric defects in solids.
Asked by Topperlearning User
17th June 2016,
10:28 AM
CBSE - XII Science - Chemistry - The Solid State
is there any d different way of solving questions related to tetrahedral voids and octahedral voids and fcc bcz it confuses me a lot explain plzzz explain with example
Asked by Farooq Ahmad Shah
17th January 2016,
6:57 PM
CBSE - XII Science - Chemistry - The Solid State
Why does Fe3O4 shows ferrimagnetic nature while FeO and Fe2O3 show antiferromagnetic nature...??
Asked by vaish.agrawal
21st June 2015,
1:22 AM
CBSE - XII Science - Chemistry - The Solid State
Why AgBr shows both Schottky and Frenkel defects??
Asked by vaish.agrawal
11th June 2015,
11:56 PM
CBSE - XII Science - Chemistry - The Solid State
define pyzoelectricity
Asked by Sandeep Yadav
8th February 2015,
2:45 PM
CBSE - XII Science - Chemistry - The Solid State
Why are solids containing F centers paramagnetic?
Asked by Preethu S
14th October 2014,
8:42 PM
CBSE - XII Science - Chemistry - The Solid State
Why is FeO(s) not formed in the stchiometric composition?
Asked by Preethu S
14th October 2014,
8:38 PM
CBSE - XII Science - Chemistry - The Solid State
What is metal excess defect and why does it occurs ?
Asked by NAKSHATRA
4th August 2014,
6:29 PM
CBSE - XII Science - Chemistry - The Solid State
What is metal deficiency ?
Asked by NAKSHATRA
3rd August 2014,
12:07 PM
CBSE - XII Science - Chemistry - The Solid State
What is a valence band and a conduction band ?
Asked by NAKSHATRA
3rd August 2014,
12:05 PM
CBSE - XII Science - Chemistry - The Solid State
What is a semiconductor? Describe the two main types of semiconductors and explain mechanisms for their conduction.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - The Solid State
Explain each of the following with a suitable example: (i) Paramagnetism (ii) Piezoelectric effect (iii) Frenkel defect in crystals
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - The Solid State
(a) What type of semiconductor is obtained when silicon is doped with boron? (b) What type of magnetism is shown in the following alignment of magnetic moments? (c) What type of point defect is produced when AgCl is doped with CdCl2
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - The Solid State
Define semiconductors.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - The Solid State
Why is LiCl in excess of Li pink in color.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - The Solid State
What is the difference between Schottky and Frenkel defects.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - The Solid State
Compare line defect and dislocation.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - The Solid State
Explain vacancy defect in solids.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - The Solid State
Why do solids show magnetic property? Classify these properties.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - The Solid State
Compare p-type and n-type conductor.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - The Solid State
In term of band theory what is the difference between conductor and insulator.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - The Solid State
Explain the following with suitable examples.(a)12-16 and 13-15 group compounds, (b) Ferromagmetic.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - The Solid State
Name two point defects and explain them.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - The Solid State
Explain dislocation.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - The Solid State
Which of the following Frenkel defects or Schottky defects decreases the density of the solid.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - The Solid State
What are crystal defects.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - The Solid State
on heating crystals of KClin potassium vapours ,the crystals start exhibiting a violet colour ,why?
Asked by vatsala srivastava srivastava
19th May 2014,
12:35 PM
CBSE - XII Science - Chemistry - The Solid State
a silver halide forms creystals similar to those of NaCl.under what conditions these change to CsCl
crystal
Asked by vatsala srivastava srivastava
19th May 2014,
12:26 PM
CBSE - XII Science - Chemistry - The Solid State
what happens when ferrimagnetic Fe3O4 is heated at 850K and why ?
Asked by vatsala srivastava srivastava
19th May 2014,
11:48 AM
CBSE - XII Science - Chemistry - The Solid State
What is meant by 'doping' in a semiconductor?
Asked by Topperlearning User
12th December 2013,
9:50 AM
