A binary solid $(A^{+} B^{-})$ has a rock salt structure. If the edge length is 400 pm and radius of cation is 75 pm, the radius of anion is

100 pm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

125 pm

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

250 pm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

325 pm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
125 pm

Edge length (a) = $2 (r_{c} + r_{a})$
$\Rightarrow 400 = 2 r_{c} + 2 r_{a} \Rightarrow 400 = 2 \times 75 + 2 r_{a} \Rightarrow 400 - 150 = 2 r_{a} \Rightarrow 250 = 2 r_{a} \Rightarrow r_{a} = \frac{250}{2} = 125 p m$

Suggest Corrections

Similar questions

(A^{+} B^{-})

400

(A^{+})

(B^{-})

A B

400

80

A binary solid $(A^{+} B^{-})$ has a rock salt structure. If the edge length is 400 pm and radius of cation is 75 pm, the radius of anion is

(A B)

400 pm

80 pm

Join BYJU'S Learning Program