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CaC(2)+H(2)O rarr Ca(OH)(2)+C(2)H(2) 2 m...

`CaC_(2)+H_(2)O rarr Ca(OH)_(2)+C_(2)H_(2)` `2` mole of `CaC_(2)` will give `y` moles of `C_(2)H_(2)` ,`%` yield is `50%`.The value of `y` is.

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