A salt XY crystallises in the CsCl structure. If the anions are located at the corners and the cation in the centre, the radius ratio $\frac{r_{+}}{r_{-}}$ is:

0.225

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0.441

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0.625

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0.732

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Solution

The correct option is C $0.732$
Given that a salt XY crystallises in the CsCl structure. CsCl has a cubic structure with coordination number $8$ .

For coordination number $8$ , radius ratio varies as-
$0.732 \leq \frac{r_{+}}{r_{-}} < 1$

Hence, the correct option is D.

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Similar questions

Q. A salt AB crystallises in the CsCl structure. The anions at the corners and the cation in the centre, hence radius ratio

(\frac{r_{t}}{r})

Q. A salt MY crystallizes in the CsCl structure. The anions at the coners touch each other and cation is at the centre. The radius ratio,

\frac{r_{\oplus}}{r_{⊝}}

for this structure is :

Q. A crystalline structure has radius ratio (

r_{+} / r_{-}

) in the range of

0.225 - 0.414

. The coordination number and arrangement of anions around the cations are:

A compound having radius ratio,

(\frac{r^{+}}{r^{-}})

in the range of

0.732 - 1

generally has

C s C l

structure.

The CsCl type structure is exhibited by alkali halides only when the radius of the cation is large enough to keep touching its eight nearest neighbour anions. Below what minimum ratio of cation to anion radii $(\frac{r_{+}}{r_{-}})$ this contact is prevented ?

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A salt XY crystallises in the CsCl structure. If the anions are located at the corners and the cation in the centre, the radius ratio r+r− is:

The correct option is C 0.732Given that a salt XY crystallises in the CsCl structure. CsCl has a cubic structure with coordination number 8.For coordination number 8, radius ratio varies as-0.732≤r+r−<1Hence, the correct option is D.

A salt XY crystallises in the CsCl structure. If the anions are located at the corners and the cation in the centre, the radius ratio $\frac{r_{+}}{r_{-}}$ is:

The correct option is C $0.732$
Given that a salt XY crystallises in the CsCl structure. CsCl has a cubic structure with coordination number $8$ .

For coordination number $8$ , radius ratio varies as-
$0.732 \leq \frac{r_{+}}{r_{-}} < 1$

Hence, the correct option is D.