Draw the major product that is formed when 2-butyne is treated with an excess of hydrogen gas and a platinum catalyst. draw the molecule on the canvas by choosing buttons from the tools (for bonds), atoms, and advanced template toolbars. the single bond is active by default.

Addition of hydrogen in unsaturated hydrocarbons is known as Hydrogenation.

Major product that is formed when 2-butyne is treated with an excess of hydrogen gas and a platinum catalyst is an alkane of four carbon atom known as butane.

Here hydrogen gas is in excess, first but-2-ene will form from the but-2-yne then butane will form from the but-2ene.

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As shown in the image attached.

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