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Chemistry-

General

Easy

Question

The Lewis symbols of three unknown elements are as follows :
i)
ii)
iii)
Write the formula of the different compounds formed by their combination.

$A_{3} B_{2}, A C, A_{2}, B_{2}, B C, B_{2} C, B C_{2}, C_{2}$
$A_{2} B_{3}, A C_{2}, B_{2}, B_{2} C, C_{2}, B C_{2}, A C$
$A_{2} B_{4}, A_{2} C_{2}, B_{2}, B C, B C_{2}, C_{2}, B_{2} C$
$A_{3} B_{2}, A C, B_{2}, B C, B_{2} C, B C_{2}, C_{2}$

The correct answer is: $A subscript 3 end subscript B subscript 2 end subscript comma A C comma B subscript 2 end subscript comma B C comma B subscript 2 end subscript C comma B C subscript 2 end subscript comma C subscript 2 end subscript$

Symbol of A = A⁺⁺
Symbol ob B = B^{– –}
Symbol of C = C^{– –}
So formula A⁺⁺ B^{– – –} = A₃B₂
A⁺⁺ C^{– –}= A₂C₂ = AC

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