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IF the radius ratio of cation to an...

IF the radius ratio of cation to anion is in the range of 0.225 - 0.414 , then the coordination number of cation will be _________.

A

3, plane triangular

B

6,octahedral

C

4,tetrahedral

D

8,cubic

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The correct Answer is:
C
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NCERT FINGERTIPS-THE SOLID STATE -Number Of Atoms In Unit Cell And Close Packed Structures
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  2. Match the column I with Column II and mark the appropriate choice .

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  3. IF the radius ratio of cation to anion is in the range of 0.2...

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  4. A crystal lattice with alternate +ve "and "-veions has radius ratio o...

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  5. A solid AB has the NaCL structure, If radius of cation A^(+) is 120 pm...

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  6. A crystal is formed by two elements X and Y in cubic structure. X atom...

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  7. If there elements X, Y & Z crystallize in cubic solid lattice with X- ...

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  8. A compound formed by two elements M and N. Element N forms ccp and ato...

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  9. A cubic solid is made up iof two elements X and Y . Atoms Y are presen...

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  10. How many chloride ions are there around sodium ion in sodium chloride ...

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  11. In NaCl structure , all the :

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  12. 8:8 coordination of CsCl is found to change into 6:6 coordination :

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  13. In CsCI lattice the coordination number of Cs ion is

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  14. Which is /are correct statement about zinc blende structure ?

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  15. The unit cell shown in the figure belongs to

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  16. The coordination number of Y will be

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  17. Which of the following about the above structure is not correct ?

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  18. In CaF(2) type (fluorite structure) Ca^(2+) ions form W structure and ...

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  19. Which of the following statements is not true ?

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  20. A unit cell of BaCl2 (fluorite structure) is made up of

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