Choose the correct option.
1. Calcium is
a. monovalent.
b. bivalent.
c. trivalent.
2. SO ²4 is a
a. basic radical.
b. simple radical.
c. compound radical
3. Quicklime contains
a. calcium and oxygen.
b. hydrogen and oxygen.
c. calcium and hydrogen
Answers
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Answer:1. (b) bivalent
2. (C) compound radical
3. (A) calcium and oxygen
Explanation:
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