Chemical technology |Химическая технология
Final Certification |Итоговая Аттестация
Complete the sentences with the suggested words:
affects altering exception heterocyclics made obtained possess selecting similar widespread
1. Organic chemistry received a boost when it was realized that these compounds could be treated in ways
to inorganic compounds and could be created in the laboratory by means other than 'vital force'.
2. Later recommendations extended the method to the simplification of other complex cyclic structures, including
, and named such structures phanes.
3. From another aspect aliphatics can be straight chain or branched chain compounds, and the degree of branching also
characteristics, like octane number or cetane number in petroleum chemistry.
4. Changing the conditions of polymerisation changes the chemical composition of the product by
chain length, or branching, or the tacticity.
5. Neutral organic compounds tend to be less soluble in water compared to many inorganic salts, with the
of certain compounds such as ionic organic compounds and low molecular weight alcohols and carboxylic acids where hydrogen bonding occurs.
6. Crystallography has seen especially extensive use in biochemistry (for protein structure determination) and in the characterization of organometallic catalysts, which often
significant symmetry.
7. Organic synthesis of a novel compound is a problem solving task, where a synthesis is designed for a target molecule by
optimal reactions from optimal starting materials.
8. The study of organic chemistry is both fascinating and relevant, due in large part to the
distribution of both natural and synthetic organic chemicals.
9. When the temperature of the mixture reaches 190 the receiver is changed, and impure allyl alcohol is
as the distillate.
10. One of these is ‘paraffin oil’; another is the white solid ‘paraffin wax’, and both are
up almost exclusively of hydrocarbons of the methane series.
Check
OK