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प्रश्न
Element ‘A’ has electronic configuration 2, 7; ‘B’ has electronic configuration 2, 8, 5 and ‘C’ has electronic configuration 2, 8, 7. Which two elements will exhibit similar chemical properties?
पर्याय
A and C
A and B
B and C
None of these
MCQ
उत्तर
A and C
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