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Introduction to d and f Block Elements

A compound co...

Question

A compound contains equal masses of the element A, B and C. The atomic mass of A, B and C are 20, 40 and 60 respectively. The empirical formula of the compound is:

A

A_{3} B_{2} C

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B

A B_{2} C_{3}

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C

A B C

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D

A_{6} B_{3} C_{2}

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Solution

The correct option is D $A_{6} B_{3} C_{2}$
Let mass of A, B and C be W.
$∴ N_{A} : N_{B} : N_{C} = \frac{W}{20} : \frac{W}{40} : \frac{W}{60} = 3 : 1.5 : 1 \equiv 6 : 3 : 2$
So, the empirical formula is $A_{6} B_{3} C_{2}$

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