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Which pair is different from the others?
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a
Na-K
b
Ca-Mg
c
Li-Mg
d
B-Al
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Correct option is C
1. Both elements belong to group 1.2. Both elements belong to group 2.3. Li of group 1 element and Mg is of group 2 element, hence different pairs form other pairs.4. Both elements belong to group 13 elements.Talk to our academic expert!
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