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Chemical Kinetics

Question
CBSEENCH12011048
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The ionic radii of A+ and B- ions are 0.98 x 10-10 m and 1.81 x10-10 m. The coordination number of each ions in AB is 

  • 4

  • 8

  • 2

  • 6

Solution

D.

6

Given, ionic radius of cation (A+) =0.98 x 10-10m
Ionic radius of anion (B-)=1.81 x 10-10m
therefore,
The coordination number of each ion in AB =?
Now we have.
radius space ratio space equals space fraction numerator Radius space of space cation over denominator Radius space of space anion end fraction space equals space fraction numerator 0.98 space straight x space 10 to the power of negative 10 end exponent space straight m over denominator 1.81 space straight x space 10 to the power of negative 10 end exponent straight m end fraction space equals space 0.541
If radius ratio range is in between 0.441-0.732 ion would have an octahedral structure with coordination number six.

Some More Questions From Chemical Kinetics Chapter

A reaction is 50% complete in 2 hours and 75% complete in 4 hours. What is the order of the reaction.

The rate law for the decomposition of N2O5 is rate = k[N2O5]. What is the significance of k in this equation?

Define activation energy of a reaction.

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