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Q.

The electronegativity value of chlorine and bromine are respectively 3 and 2.8. Formula of a binary compound is best represented as

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a

BrCl

b

ClBr3

c

ClBr

d

ClBr5

answer is A.

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Detailed Solution

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Given the value of electronegativity of bromine is 2.8 and chlorine is 3.0.

Since electronegativity of bromine is less and electronegativity of chlorine is more. Therefore, bromine will act as the central atom in the compound and chlorine will act as the side atom or subsidiary atom.

Hence, Formula of a binary compound is BrCl

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