(Solved): Question 15 (1 paint) In an crganic compound, two methyl groups are found at the third and sixth po ...

Question 15 (1 paint) In an crganic compound, two methyl groups are found at the third and sixth positions and two double bonds exist at the first and fourth positions. If this compound has a straight chain structure with minimum possible number of carban atcms, the IUPAC name of this compound will be 1.4-dimethylhex-6,3-diene 3,6-dimethylhept-1,4-diene 3,6-dimethyloct-1,4-diene 3,6-dimethylpent-1,4-diene 3,6-dimethylhex-1,4-diene Question 16 (1 point) Far which of the compounds below are cis-trans isomers possible? (1) ${\mathrm{CH}}_3\mathrm{CH}-{\mathrm{CHCH}}_2{\mathrm{CH}}_3$ $|2|$ ${\mathrm{CH}}_3\mathrm{CH}-{\mathrm{CHCH}}_3$ (3) Both 1 and 2 Only 3 Both 2 and 3 All three Only 2 Organic compounds contain very few elements, whereas inorganic carbon compounds contain almost all elements. Which of the following elements is not commonly found in organic compounds? Carben Hydrogen Oxygen Nitrogen Germaniurn Question 18 (1 paint) Inorganic compounds do not contain a carbon-carbon bond. Two types of intramolecular bonds can exist in different inorganic carbon compounds. These are Ionic and metallic bonds Covalent and ianic bonds lonic and hydrogen bonds Covalent and hydrogen bands Question 19 (1 paint) Two iscmeric formis of a saturated hydrocarbon Have the same molecular formula React vigorously with one anather Have the same structure Have a different content of the isotopes of hydrogen Have different compositions of elements