Question

this compound is written as but-2-yne how??​

Answer 1

Answer:

If we number from right to left because from there the triple bond will be give the smallest number , that is 2

Thats why it is but-2-yne

I hope that it helps

Answer 2

Answer:

but-2-yne because there r 4 carbons means it is "but" and "yne"is for triple bond whereas 2 is used to signify that triple bond is present between 2nd and 3rd carbon .In 2 and 3 ...2 is the smallest number so we write 2 yne...

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