1. Name the first organic prepared in the laboratory
2. Arrange sp', sp and sp hybrid orbitals in increasing order of their electronegativity.
3. Give an example for non-benzenoid aromatic compound.
4. Write condensed structure of isopropyl group.
5. Write IUPAC name o
Answers
Answer:
Explanation:
As hybrid orbital's p character increases, its size increases so order is sp<sp
2
<sp
3
.
Answer:
1. urea
Wöhler's synthesis of urea
German chemist Friedrich Wöhler from ammonium cyanate in 1828 was the first generally accepted laboratory synthesis of a naturally occurring organic compound from inorganic materials. Urea is now prepared commercially in vast amounts from liquid ammonia and liquid carbon dioxide.
2.The correct order regarding the electronegativity of hybrid orbitals of carbon is sp >sp2>sp3 because in sp, sp2andsp3 hybrid orbitals s-orbital character is 50%, 33.3% and 25% respectively and due to higher s-character electron attracting tendency, i.e. electronegativity increases.
3.The most basic example of non benzenoid aromatic compound is AZULENE . It is a system of two fused rings , one containing 7 and the other 5 carbons . Azulene, which has a specific structure of ring-fused unsaturated seven- membered and five-membered rings, is a typical non-benzenoid aromatic compound.
4.Isobutyl group structure
Removing a hydrogen atom from a primary carbon atom of isobutane gives a primary alkyl group called the isobutyl group. Removing a hydrogen atom from the tertiary carbon atom of isobutane gives a tertiary alkyl group called the tert-butyl (t-butyl) group. Thus, there are four isomeric C4H9 alkyl groups.
5.
(a)
(i) The IUPAC name is 2-methoxypropane.
(ii) The IUPAC name is 2-methylpropan-1-ol.
(b)
(i) Phenol reacts with conc. HNO3 in presence of concentric H2SO4 to form 2,4,6-trinitrophenol.
(ii) Phenol reacts with zinc dust to form benzene.
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