Chemistry, asked by gokulreddy10, 2 months ago

2. Solid AB has rock salt structure edge length of its unit cell is 200pm. Nearest distance between
A&B is, if radius of Ais 30pm
a) 70pm
b) 140pm
e) 60pm
d) 100pm

Answers

Answered by aftabraini8090

3

Answer:

70

Explanation:

In rock salt;

B occupies:. all corner and all face

A occupies:. all edge and body centre

so, 2Ra + 2Rb = 200

Ra + Rb = 100

30. + Rb. = 100

Rb = 70pm

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