Grasshopper ketone is a natural product isolated from the flightless grasshopper
ID: 982887 • Letter: G
Question
Grasshopper ketone is a natural product isolated from the flightless grasshopper Romalea microptera. From its structure, locate the next types of bonds or atoms. (Note: the dark dot in the middle of the double bonds corresponds to the presence of a carbon.)
An sp3-hybridized carbon atom
A highly polarized covalent single bond
A nearly nonpolar covalent bond
An sp2-hybridized carbon atom
A highly polarized covalent double bond
An sp-hybridized carbon atom
A bond between atoms of different hybridizations
Explanation / Answer
Identification of carbons and structure
An sp3-hybridized carbon atom : CH3 or CH2 or CH or C (quaternary carbon)
A highly polarized covalent single bond : C-heteroatom (heteroatom could be O)
A nearly nonpolar covalent bond : CH3-CH2 as in sp3-sp3 linkage
An sp2-hybridized carbon atom : C= [carbon with a doble bond]
A highly polarized covalent double bond : C=O linkage
An sp-hybridized carbon atom : Carbon with a triple bond or carbon with two double bonds
A bond between atoms of different hybridizations : =C-CH3, is a bond between sp2 C and sp3 carbon
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