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A few compounds are listed as: (i) Amm...

A few compounds are listed as:
(i) Ammonia, (ii) Aluminium fluoride, (iii) Magnesium sulphide, (iv) Magnesium oxide
Find the ratio by mass of the combining elements in each compound.
(Given : Atomic mass of N= 14 u, H= 1 u, Mg = 24 u, O= 16 u, S = 32 u, F = 19 u and Al= 27 u)

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The correct Answer is:
B
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