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Equivalent weight of Cu in $CuC l_{2}$ is

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127

63.5

35.5

31.75

answer is B.

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Detailed Solution

Equivalent weight of element = \frac{Atomic weight of the element}{Valency of the element}

In $CuC l_{2}, Cu$ valency is 2 and its atomic mass is 63.5

$= \frac{63.5}{2} - 31.75$

$∴$ Equivalent weight of Cu in $CuC l_{2}$ is 31.75.

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