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An element ‘X’ with atomic number 11 forms a compound with element ‘Y’ with atomic number 8. The formula of the compound formed is
(a) XY (b) X2Y
(c) XY2 (d) X2Y3
Correct Answer: (b) X2Y
Explanation: The formula of the compound formed by an element X (atomic number 11) and an element Y (atomic number 8) is X2Y.
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