What is the expected major organic product from treatment of 4-methyl-2-pentyne with excess hydrogen in the presence of a platinum catalyst?

The answer is 2-Methylpentane. This is irrelevantly known as isohexane, is a branched-chain alkane with the molecular formula C₆H₁₄. It is a important isomer of hexane comprised of a methyl group attached to the second carbon atom in a pentane chain.

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

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