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Q.

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 XY2

II) It is soluble in water

III) X and Y are joined by sharing of electrons

IV) It would conduct electricity in the molten state

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a

I and IV

b

I and III

c

II and III

d

I, II and IV

answer is C.

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Detailed Solution

Molecular formula of Z is XY2 (MgCl2) 

It is soluble in water

It would conduct electricity in the molten state

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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 XY2II) It is soluble in waterIII) X and Y are joined by sharing of electronsIV) It would conduct electricity in the molten state