What two atomic orbitals. or hybrid atomic orbitals overlap to form the carbon-c

Question

What two atomic orbitals. or hybrid atomic orbitals overlap to form the carbon-carbon alpha bond in ________ sp^2_sp^2 s-s sp-sp p-p sp^3-sp^3 How many distinct internal alkynes exist with a molecular formula of C_6H_10? _________ 1 2 3 4 In the addition of hydrogen bromide to alkynes in the absence of peroxides, which of the following species is believed to be on intermediate? _________ vinyl anion bromonium ion carbine vinyl cation vinyl radical What Is the IUPAC name for the following alkyne?

Explanation / Answer

11) option C is correct. ( triple bonded carbons are sp hybridized.)

12) option C is correct

13) option d is correct (vinyl cation is intermediate in addition of HBr to alkyne. The electron density from double bond attcks hydrogen atom of HBr and expels Br- and forms a carbocation as intermediate. Now Br- acts as nucleophile and attacks carbocation to form the product.)

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