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The thickness of each sheet in montmorillonite is ______________

(a) 5 Å

(b) 7 Å

(c) 10 Å

(d) 15 Å

The question was asked in semester exam.

Question is from Clay Minerals topic in chapter Soil Structure and Clay Minerology of Geotechnical Engineering I

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Best answer
Correct choice is (d) 15 Å

To explain I would say: Thickness of montmorillonite, T= 7×10^-10mm

T=7 Å.

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