Many important compounds in the chemical industry are derivatives of ethylene (C2H4). Two of them are acrylonitrile and methyl methacrylate. Acrylonitrile Methyl methacrylate Match the approximate values for bond angles a through f.
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Many important compounds in the chemical industry are derivatives of ethylene $\left(\mathrm{C}_{2} \mathrm{H}_{4}\right) .$ Two of them are acrylonitrile and methyl methacrylate. Complete the Lewis structures, showing all lone pairs. Give approximate values for bond angles $a$ through $f$ . Give the hybridization of all carbon atoms. In acrylonitrile, how many of the atoms in the molecule must lie in the same plane? How many $\sigma$ bonds and how many $\pi$ bonds are there in methyl methacrylate and acrylonitrile?
Each carbon atom in ethane and in ethylene is surrounded by eight valence electrons and has four bonds to it. Explain how the VSEPR model (Section 3.10 ) predicts a bond angle of $109.5^{\circ}$ about each carbon in ethane but an angle of $120^{\circ}$ about each carbon in ethylene.
Adi S.
Ethylene, $\mathrm{C}_{2} \mathrm{H}_{4},$ and tetrafluoroethylene, $\mathrm{C}_{2} \mathrm{~F}_{4},$ are used to make the polymers polyethylene and polytetrafluoroethylene (Teflon), respectively. (a) Draw the Lewis structures for $\mathrm{C}_{2} \mathrm{H}_{4}$ and $\mathrm{C}_{2} \mathrm{~F}_{4},$ and give the ideal $\mathrm{H}-\mathrm{C}-\mathrm{H}$ and $\mathrm{F}-\mathrm{C}-\mathrm{F}$ bond angles. (b) The actual $\mathrm{H}-\mathrm{C}-\mathrm{H}$ and $\mathrm{F}-\mathrm{C}-\mathrm{F}$ bond angles are $117.4^{\circ}$ and $112.4^{\circ},$ respectively. Explain these deviations.
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