What steps are needed to prepare phenylacetylene from, Ask an Expert

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what steps are needed to prepare phenylacetylene from C6H5CH2CH2Br I chose the following reagents 1. H2SO4, 2. Br2, 3. NaNH2/excess (were correct) and simply require to draw the intermediate 1&2... I cannot seem to get the figures correct! Please show all steps so that I may see what is being done.

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