Question 1
The IUPAC name of
tert-butyl group is:
◦ 1,1-dimethylethyl
◦ 1,1-dimethylethane
◦ 1,2-dimethylethyl
◦ 1-methylpropyl
◦ 2-methylpropyl
Question 2
The terms
ortho,
meta and
para are used to describe the substitution on benzene ring. What do they stand for?
◦
Ortho stands for two adjacent substituents,
meta for two substituents with one carbon between them and
para for two substituents with two carbon atoms between them.
◦
Ortho stands for two
cis substituents,
meta for two
trans substituents and
para for two opposite substituents.
◦
Ortho stands for two adjacent substituents,
meta for two different adjacent substituents and
para for two substituents with one carbon atoms between them.
◦
Ortho stands for two substituents with one carbon atom between them,
meta for two substituents with two carbons between them and
para for two substituents with three carbon atoms between them.
◦
Ortho stands for two substituents with two carbon atoms between them,
meta for two substituents with three carbons between them and
para for two substituents with four carbon atoms between them.
Medical Terms and Corresponding Synonyms
Directional Terms
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Saturn and its Ring System "زحل ونظامها الدائري"