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प्रश्न
AB crystallises in a body centred cubic lattice with edge length' a' equal to 387 pm The distance between two oppositely charged ions in the lattice is:
विकल्प
335 pm
250 pm
200 pm
300 pm
MCQ
उत्तर
335 pm
Explanation:
For bcc lattice
`2(r^+ + r^-) = sqrt(3)a`
`(r^+ + r) = (sqrt(3)a)/2`
= `(sqrt(3) xx 87 "pm")/2`
= 335 pm
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