Chemistry - Solid State Question with Solution | TestHub

ChemistrySolid StateGeneralEasy2 minPYQ_2020

ChemistryEasysingle choice

A solid AB has NaCl type structure with edge length $580.4 p m .$ The radius of $A^{+}$ is $100 p m .$ What is the radius of $B^{-}$ in pm?

Options:

Answer:

Solution:

$N a C l$ has fcc structure and thus,
$r_{c} + r_{a} = \frac{a}{2}$
$100 + r_{a} = \frac{580.4}{2} = 290.2$
$100 + r_{a} = 290.2$
So $r_{a} = 290.2 - 100 = 190.2 p m$

Stream:JEESubject:ChemistryTopic:Solid StateSubtopic:General

⏱ 2mℹ️ Source: PYQ_2020

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