What is the valency of the underlined element in the following compounds? i. CaCl2 ii. CCl4 iii. CuSO4 iv. NaAlO2 v. Fe(NO3)2
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What is the valency of the underlined element in the following compounds?
i. CaCl2 ii. CCl4 iii. CuSO4 iv. NaAlO2 v. Fe(NO3)2