Alkynes (A) and (B) hav ethe molecular formula C_(8)H_(14) giving following reactions: (A) or (B) overset(H_(2)//Pt)rarr "n-Octane". (A) overset(O_(3)//H_(2)O)rarr CH_(3)CH_(2)CH_(2)CO_(2)H (B) overset(Ag(NH_(3))_(2)OH)rarr silver containing white ppt. Write the structure of (A) and (B).

Alkynes (A) and (B) hav ethe molecular formula C_(8)H_(14) giving foll

1.	Alkynes (A) and (B) hav ethe molecular formula C_(8)H_(14) giving following reactions: (A) or (B) overset(H_(2)//Pt)rarr "n-Octane". (A) overset(O_(3)//H_(2)O)rarr CH_(3)CH_(2)CH_(2)CO_(2)H (B) overset(Ag(NH_(3))_(2)OH)rarr silver containing white ppt. Write the structure of (A) and (B).
Answer» Solution :Since `(A)` and `(B)` by reduction using `H_(2)//Pt` gives `n`-Octane, hence both have straight chain `A overset(O_(3)//H_(2)O)rarr CH_(3)CH_(2)CH_(2)CO_(2)H` ("and no other compound") Hence, there should be two mole of this ACID. THUS `A` is `CH_(3)CH_(2)CH_(2)C-=C CH_(2)CH_(2)CH_(3)` `B` gives white PPT. containing `Ag` hence, `B` is terminal alkyne. Structure of `B` is `CH_(3)CH_(2)CH_(2)CH_(2)CH_(2)CH_(2)C-=CH`