题目内容

Ions with the same valence share the same exchange ability.

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Only permanent surface charges are present on the surface of typical 1: 1 phyllosilicate clay mineral-kaolinite.

Which of the following clay minerals is nonexpanding 2: 1 clay mineral?

A. Montmorillonite
B. Kaolinite
C. Vermiculite
D. Illite

Aluminum-oxygen octahedron consists of one aluminum ion and ( ) oxygen ions.

A. four
B. five
C. six
D. seven

Iron oxides belong to ( ).

A. Inorganic colloids
B. Organic colloids
C. Organo-mineral colloids
D. None of the above