A compound contains equal masses of the elements A, B and \( \mathrm{C} \). If the atomic masses...

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A compound contains equal masses of the elements A, B and \( \mathrm{C} \). If the atomic masses of \( \mathrm{A} \), \( \mathrm{B} \) and \( \mathrm{C} \) are 20,40 and 60 , respectively, then the empirical formula of the compound is(a) \( \mathrm{A}_{3} \mathrm{~B}_{2} \mathrm{C} \)(b) \( \mathrm{AB}_{2} \mathrm{C}_{3} \)(c) \( \mathrm{ABC} \)(d) \( \mathrm{A}_{6} \mathrm{~B}_{3} \mathrm{C}_{2} \)
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