Tetrahedral voids is surrounded by four ...

Tetrahedral voids is surrounded by four atoms. Which atoms in the given figure are around the tetrahedral voids ?

2,3,4 and 5

1,3,4,5

1,2,3,4

2,4,5

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Which of the following statement is correct for a closet packed structure? (i) Each tetrahedral void is surrounded by 4 spheres and each sphere is surrounded by 8 tetrahedral voids. (ii) Each octahedral voids is surrounded by 6 spherus and each sphere is surrounded by 6 octahedral voids. (iii) The number of tetrahedral voids in a closest-packed arrangement is twice the number of spheres. (iv) The number of octahedral voids in a closest-packed arrangement is equal to the number of spheres.

Assertion: In a close packing of spheres, a tetrahedral void is surrounded by four spheres whereas an octahedral void is surrounded by six spheres. Reason: A tetrahedral void has a tetrahedral shape while an octahedral void has an octahedral shape

Assertion:A tetrahedral void is surrounded by four spheres and an octahedral void is surrounded by six spheres. Reason:The number of tetrahedral voids is double the number of close packed spheres and number of octahedral voids is equal to number of close packed spheres.

In which of the following solids, cations occupy tetrahedral voids ?

Assertion : The number of tetrahedral voids is double the number of octahedral voids Reason : The size of the tetrhedral voids is half of that of the ochedral void

In FCC, distance between nearest tetrahedral voids is :

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