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Non-Ideal Solutions

Do all the ra...

Question

Do all the radius ratio rules hold in the case given below?

Assume the blue spheres are anions and red is cation.

True

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False

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Solution

The correct option is B
False

The first rule of radius ratios states that anions and cations should always be touching each other, but it is not the case in the above figure.

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Similar questions

In radius ratio rules, we assume that cations and anions always touch each other.

0.2 ˚ A

0.95 ˚ A

4

Which of the following is part of the radius ratio rules?

1. Atoms are randomly placed.

2. Ions are hard spheres.

3. Atoms are spherical.

4. Atoms are rectangular.

5. All atoms never touch each other.

6. Cations and anions always touch each other.

7. Cation is surrounded by as many anions as possible to maximize stability.

Type in the appropriate number in the order given.

For example, if you think first, third and fifth properties are valid, you type 135 and not 153 or 531.

State whether true or false :

Cation and anion exchange resins are used in the ion-exchange process.

0.2

A^{o}

0.95

A^{o}

4

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