q466

0. An element X (atomic number 12) reacts with another element Y (atomic number 17) to form a compound Z. Which of the following statements are
true regarding this compound? 

I. Molecular formula of Z is XY 2
II. It is soluble in water
III. X and Yare joined by sharing of electrons
IV. It would conduct electricity in the molten state (NTSE Stage-II,2012-13)

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