→write any two methods for preparation of alkynes????
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Alkynes is produced by removing one hydrogen atom from alkane
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Methods for preparation of alkynes are:
-From vicinal diol
When vicinal diol is treated with excess conc sulphuric acid yield alkyne
- From vicinal dihaloalkanes
When vicinal di haloalkanes treated with alkoholic potassium hydroxide excess alkyne is formed
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