1.

If interionic distance between Na^​+​ and F​^- ions is 2.31 Å then radii of Na^​+​ & F​^-​ are :-

Answer»

1.95 Å & 1.36 Å
0.95 & 1.36Å
1.36Å & 1.98Å
1.36Å & 1.36 Å

ANSWER :B


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