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CBSE Class 12-science Answered

pls solve sir
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Asked by sulaikhasulu393 | 01 Jul, 2020, 10:08: PM
answered-by-expert Expert Answer
Octahedral voids in FCC are present in two positions-
(1) Edge-centres
(2) Body-Centre
 
In this given plane, It is passing through only body centre.
So Number of centres of octahedral voids in this plane is =1 (at body centre)
Answered by Ravi | 02 Jul, 2020, 10:56: AM

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CBSE 12-science - Chemistry
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explain please
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Asked by kasthurikalvi | 16 Sep, 2020, 03:46: PM
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pls solve sir
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Asked by sulaikhasulu393 | 01 Jul, 2020, 10:08: PM
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CBSE 12-science - Chemistry
How many types of 3dimensions are there in a lattice please define.  
Asked by anukritisingh8103.bmps | 18 May, 2020, 03:00: PM
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CBSE 12-science - Chemistry
sir in types of unit cell we studied it can be of 4 types i.e primitive, face centred, body centred and end centred, but while studing 3D close packing it was told that it can be of 3 types i,e. simple(primitive) cubic unit cell, hcp and ccp. but i am not able  to understand that hcp is a type of unit cell or it is one of the 7 crystal system or somthing else?and if it is type of unit cell then why it is not taught under the topic types of unit cell. and if it is a crystal system then what about the rest 6 crystal system, then why rest 6 crystal system does not comes under 3 dimensional close packing?
Asked by rohitraman1115 | 10 Sep, 2019, 07:10: PM
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