1.

Write the IUPAC name of the compoundoverset(4)(CH_3) - overset(3)(C) -= overset(2)(C) - overset(1)(CH_3).

Answer»

Solution :There are 4 C atoms in the chain involving triple bond, therefore, the root WORD is .but.. There is triple bond in the chain between carbon 2 and carbon 3, therefore, primary suffix is 2-yne..
Thus, the IUPAC NAME of the GIVEN compound is
Root word + Primary suffix
But + 2-yne = But-2-yne


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