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Ethene and ethyne can be distinguished by

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Ethene and ethyne can be distinguished by
A. `Br_2` water
B. `KMnO_4` solution
C. cuprous chloride solution
D. any of the above
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Correct Answer - C
On account of unsaturation both ethene and ethyne can decolorize `Br_2` water and `KMnO_4` solution Only ethyne with acidic H atoms gives a red precipitate with `Cu_2Cl_2`
`HC-=CHoverset(Cu_2Cl_2)tounderset("Red ppt.)(CuC-=C C u)`
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