A. Trivalent
B. Pentavalent
C. Monovalent
D. Tetravalent
Right Answer: B. Pentavalent
January 9, 2018 Asghar Khan Electrical Engineering
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A. Trivalent
B. Pentavalent
C. Monovalent
D. Tetravalent
Right Answer: B. Pentavalent