Organic Chemistry Answers

Explain the following
WURTZ reaction is not very useful when two different alkyl halides are used.

8.The process by which alkyl halides are converted to alkenes in the presence of strong base is called?
a.Alkylation
b.Dehydrogenation
c.Hydrogenation
d.Acylation

9.Which of these shows how a pi
(π)
bond is formed.
a.sideway overlap of S and P orbitals
b.Edge on overlap of p orbitals
c.sideway overlap of p orbitals
d.edge on overlaps of pure S and P orbitals

10.These two factors can affect the shape of a molecule in covalent bonding
a.Temperature and pressure
b.Molecular size and atomic size
c.Bond length and bond angle
d.Bond length and bond energy

5.The formula
CH3CH3
represents the ________for ethane.
a.Condense structure
b.Spatial structure
c.Lewis structure
d.Ficher-trops structure

6.When molecules are formed it can be deduced that the fooowing took place except_________.
a.There was donation of electrons by one atom to another.
b.There was sharing of electron pair between atoms.
c.There was a molecular orbital interaction
d.There was bond elongation

7.These two factors can affect the shape of a molecule in covalent bonding
a.Temperature and pressure
b.Molecular size and atomic size
c.Bond length and bond angle
d.Bond length and bond energy

1.Which of these statements is correct?
a. (π)
bond is formed by Edge on overlap of p orbitals

b.the electron density in sigma
(δ)
bond is maximum along the internuclear axis

c.the electron density in Pi
(π)
bond is maximum along the internuclear axis

d.the electron density in sigma
(δ)
bond is maximum at the above and below the internuclear axis

2.The name of the compound whose structure appeared here
CH3(CH2)6CH3is ___.
a.Propane
b.Hexane
c.Butane
d.Octane

3.Explain why the bonds formed in
SP^3
hybrid orbitals are stronger and stable compare to the bonds formed by using pure atomic orbitals?
a.The lobes in
SP^3
hybrid orbitals are separated by anode.
b.In
SP^3
hybrid orbital, the electron density is concentrated in one direction leading to greater overlap.
c.
SP^3
hybrid orbitals are similar to p orbitals.
d.
SP^3
hybrid orbitals have two lobes of unequal sizes

4.Which of these shows how a sigma
(δ)
bond is formed.
a.sideway overlap of S and P orbitals
b.Edge on overlap of p orbitals
c.sideway overlap of p orbitals
d.edge on overlaps of pure S and P orbitals

(CH3)2CO + BrCH2COOC2H5 ( in presence of zinc) yields A. A on hydrolysis yields B. B on heating in presence of H2SO4 gives C. What is A,B and C?

Reaction of quinoline-2-carboxylic acid with benzaldehyde on heating will yield??

Reaction of indole with formaldehyde and dimethylamine.

Explain, using the examples of internal respiration and fatty acid break down, why the reactions of simple organic molecules are important in living system.

a) Explain mutarotation in glucose by drawing suitable structures.
b) Define the following for oils and fats: i) Acid value ii) Saponification value iii) Iodine value.