wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

KCl crystallizes in the same type of lattice as does NACl. Given that rNa+rCl=0.55 and rK+rCl=0.74. Calculate the ratio of the side of the unit cell for KCl to that of NaCl.


A

1.123

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

0.891

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

1.414

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

0.414

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

The correct option is A

1.123




NaCl cyrstallises in fcc.
rNa+Cl=a2
Given, rNa+rCl=0.55; Adding 1 to both sides
rNa++rClrCl=1.55(1)
Now, rK+rCl=0.74; Adding 1 to both sides
rK++rClrCl=1.74(2)

21rK++rClrNa++rCl=1.741.55aKClaNaCl=1.741.55=1.123


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Relation Between r and a
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon