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Consider the Lewis structures for H2CCH2, H2CCCH2, and H2CCCCH2. What hy- bridization should be expected for the CH2 carbon and the middle CCC carbon, respectively? 1. sp; sp2 2. sp; sp3 3. sp3; sp2 4. None of these 5. sp2; sp3 6. sp3; sp 7. sp2; sp
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2HC=C=CH2
THE CARBONS ARE NAMED AS A B C FROM LEFT TO RIGHT
IN CARBON A
VALANCE ELECTRONS 4
UNSATURATION 1
4-1=3
SO SP2 HYBRID
CARBON B VALANCE ELECTRON 4
UNSATURATION 2
4-2=2
SO S SP HYBRID