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Acetylene is acidic but it does not react with NaOH or KOH. Give reason.

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Acetylene is acidic but it does not react with NaOH or KOH. Give reason.
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Acetylene is very weak acid. The value of dissociation constant `K_(a)` is very low `(10^(-25))`. Thus, it does not react with alkalies like `NaOH` or KOH, but react with very strong base like sodamide `(NaNH_(2))`, active metals like Na,K.
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