Chapter 9________________________________________________
Chapter Nine
Organic Chemistry
Chapter Nine
Organic Chemistry
Part I: Hydrocarbons
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Chapter 9________________________________________________
Question (1):( A ) – Given the following hydrocarbons :
CH3
CH3CH=CHCH3
CH3C
(A)
C
H
CH3
(B)
(C)
CH3 CH3
CH2 = C
C
CHCH3
C2H5
CH3
CH3
CHCH2CH3
CH3
(D)
(E)
1- Classify the above hydrocarbons to saturated and unsaturated.
2- Classify the unsaturated hydrocarbons to alkenes and alkynes.
3- Calculate the number of sigma bond found between :
i-carbon atoms in each hydrocarbon.
ii- carbon and hydrogen atoms in each hydrocarbon .
4-What is the number of pi bonds in each unsaturated hydrocarbon .
5-How many moles of hydrogen molecule required to saturate each unsaturated
hydrocarbon.
6- Which unsaturated hydrocarbon is considered symmetric alkene and which one is
unsymmetric.
7-Give the name of each hydrocarbon according to IUPAC system.
8- Show which hydrocarbon ( s ) that :
i-Remove the colour of bromine dissolved in CCl4.
ii- Reacts by addition .
iii- Add hydrogen bromide according to Markonikoff ,s rule.
Iv-Called isobutane.
( B )" Saturated open chain hydrocarbon having 17 atoms in its structure ."
1- What are the number of carbon and hydrogen atom in this compound.
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Chapter 9________________________________________________
2- Write the molecular formula of this hydrocarbon .
3- Write the expected structural formulae, then name each one according to IUPAC
system.
( C )1- What is the molecular formula of cycloalkane having 15 atoms.
2- What is the number of hydrogen atom in an alkene having 18 atoms.
3- What is the number of carbon atoms in an alkyne having 13 atoms.
4- What is the number of carbon atoms that found in naphthalene and Diphenyl.
Question (2) :Write molecular and structural formula for each of the following:
1-
An open chain saturated aliphatic hydrocarbon having three carbon atoms.
2-
An open chain saturated aliphatic hydrocarbon having ten hydrogen atoms.
3-
A saturated cyclic hydrocarbon having six carbon atoms.
4-
A saturated cyclic hydrocarbon having ten hydrogen atoms.
5-
An unsaturated aliphatic hydrocarbon having four carbon atoms and two double
bonds.
6-
An unsaturated aliphatic hydrocarbon having a double bond and five carbon atoms.
7-
An unsaturated aliphatic hydrocarbon having a double bond and eight hydrogen
atoms.
8-
An unsaturated aliphatic hydrocarbon having six carbon atoms and three triple
bonds.
9-
An unsaturated aliphatic hydrocarbon having a triple bond and three carbon atoms.
10- An unsaturated aliphatic hydrocarbon having six hydrogen atoms and a triple bond.
11- An unsaturated cyclic hydrocarbon having six carbon atoms and three double bonds.
12- An unsaturated cyclic aromatic hydrocarbon having ten carbon atoms and eight
hydrogen atoms.
13- An alkane having six carbon atoms and does not contain methylene group (CH2) in
its structure.
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Chapter 9________________________________________________
14- Symmetric alkene having four carbon atoms.
15- An unsymmetric alkene having four carbon atoms.
16- A saturated aliphatic hydrocarbon used to prepare benzene by catalytic reforming
method.
17- A saturated aliphatic hydrocarbon used to prepare toluene by catalytic reforming
method.
18- An unsaturated aliphatic hydrocarbon produced from thermal decomposition of ethyl
hydrogen sulphate at 180°C.
19- A saturated aliphatic hydrocarbon produces an unsaturated hydrocarbon and a
saturated one, each having four carbon atoms on thermal catalytic cracking.
20- A saturated cyclic hydrocarbon obtained on hydrogenation of benzene.
21- A cyclic hydrocarbon obtained on cyclic polymerization of ethyne.
22- An alkane obtained on dry distillation of sodium propanoate (CH3CH2COONa) with
soda lime.
Question (3):Write a scientific expression for each of the following statements
1- Organic compounds are formed in the living cells by the influence of vital force.
2- The formula that shows the type and number of atoms present in an organic
compound.
3- Organic compounds composed of carbon and hydrogen only.
4- The presence of more than one organic compound having the same molecular
formula.
5- A group of compounds having the same general molecular formula and
graduated in their physical properties.
6- Easy liquefied halogenated alkanes used in manufacture of cooling systems.
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Chapter 9________________________________________________
7- An organic atomic group which doesn't found alone and obtained by the removal
of one hydrogen atom from alkanes.
8- Saturated aliphatic hydrocarbons , their general molecular formula is CnH2n+2.
9- Saturated cyclic hydrocarbons their general molecular formula is CnH2n.
10- Unsaturated aliphatic hydrocarbons having a double bond in their structures.
11- The process of adding hydrogen to plant oils to convert it to an artificial fat.
12- The rule that governed the addition of unsymmetric reagent (HX) to
unsymmetric alkenes.
13- The process of replacement of one hydrogen atom or more in the benzene ring
by a nitro group.
14- Reaction of benzene with alkyl halides in the presence of anhydrous aluminum
chloride.
15- The process of replacement of one hydrogen atom or more in the benzene ring
by a sulphonic group.
16- Combination of a large number of unsaturated simple molecules to form a large
one.
17- The formula that indicates the number and type of atoms in the organic molecule
and the kind of linkage between the atoms by the covalent bonds.
18- The mixture of hydrogen and carbon monoxide which is used as reducing agent
in Midrex furnace.
19- The mixture of caustic soda and quick lime.
20- Unsaturated aliphatic hydrocarbons their general formula is CnH2n-2.
21- Addition of water to alkenes or alkynes in the presence of a catalyst.
22- Conversion of long chain hydrocarbons to a shorter one by the effect of heat,
pressure and a catalyst.
23- Combination of two monomers to form copolymer associated by losing a small
molecule such as water.
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Chapter 9________________________________________________
24- An international system used for nomenclature of organic compounds based on
the number of carbon atoms in the longest continuous carbon chain.
25- Important organic compounds obtained by treatment of alkyl benzene sulphonic
acid with caustic soda.
Question (4)
I-Write IUPAC names for each of the following compounds
CH3
|
1- CH2=CH-CHCH3
2- ClCH2CH=CH-CH3
CH2CH2CH3
|
3-CH3CHCH2CH3
CH3
|
4- CH3-C-C≡C-CH3
|
CH3
C2H5
|
5-CH2=CH-CHCH3
6- CH3 – CH – CH2 – CH –CH3
CH3
O2N
7-
NO2
8-
NO2
Br
NO2
9Cl
10- CH3CH2CHC≡CH
|
CH2CH2CH3
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Chapter 9________________________________________________
II- Write the structural formula for the following compounds, then write their correct
IUPAC names:
a) 3-Bromo butane
b) 2- Ethyl propane
c) 3,4-Dimethylpentane
d) 4,4-dichloropentane
e) 3-Methyl-2-ethyl butane
f) 2,3-diethyl butane
g) 3,4,4-trimethylhexane
h) 3-chloro-4-butyne
III- Choose from column (B) and (c) the suitable for column (A)
(A)
a) cyclohexane
(B)
1-
(C)
I- alkane
b) 2,3-dimethyl-2-butene
II- alkene
c) 3-Methyl-1-butyne
2- CH3 CH(CH3) CH (CH3) CH3
III- alkyne
d) ortho nitrochlorobenzene
3- (CH3)2C=C (CH3)2
IV- aromatic
4- CH2=C(CH3)CH(CH3)CH3
compound
e) 2,3-dimethylbutane
5-
V- cycloalkane
6- CH3C=C-CH3
Cl
7-
NO2
Cl
NO2
8CH3
|
9- H-C ≡ C-CH-CH3
Question (5)
A) "An open chain saturated hydrocarbon its molecular formula is C6H14".
1- Write the possible structural formulae, one of them is hexane, two
methylpentanes and two dimethyl butanes.
2- Write IUPAC names for each structure.
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Chapter 9________________________________________________
3- Show which of them is used to prepare benzene and what is the name of the
method used?
4- How to convert normal hexane to cyclohexane.
B) "Unsaturated aliphatic hydrocarbon its molecular formula is C5H10"
1- To what class of hydrocarbons it belongs ?
2- Write the possible structure formulae , two of them are pentenes and another two
are methyl butenes.
3- Write IUPAC name for each formula.
4- Write the products of addition of the following reagent to each of them then
write IUPAC names for these products.
a- Hydrogen in presence of nickel.
b- Bromine dissolved in carbon tetrachloride.
c- Hydrogen chloride
C) Vinyl acetylene is considered as one of the unsaturated hydrocarbons which is
characterized by the presence of one double bond and one triple bond .It is
represented by the following structure.
H
H
H 3 C
2
C
C≡ C
1
H
1- Calculate the number of sigma and pi bonds in its structure.
2- How many moles of hydrogen are required to convert it to a saturated one.
3- Give the IUPAC name of the saturated compounds obtained.
4- What is the type of hybridization of carbon atom numbers 1 & 2?
5- What is the value of the angle represented by number 3?
6- Poly vinyl acetylene is one of the polymers obtained by addition polymerization.
a- what is meant by addition polymerization.
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Chapter 9________________________________________________
b- Write the structure of three repeated units of vinyl acetylene.
Question (6)
CH2=CH2
CH3CH=CH2
H-C≡C-H
CH3
Choose from the above table the compound (or compounds) which:
1- Reacts with two moles of bromine giving a tetrabromo compound.
2- Reacts with one mole of bromine giving a monobromo compound.
3- Reacts with one mole of bromine giving a dibromo compound.
4- Reacts with two bromine molecules giving two compounds each one of them
having one bromine atom.
5- Reacts with hydrogen bromide and the addition obeys Markonikoff's rule.
6- Adds one mole of hydrogen and is converted to cycloalkane.
7- Its catalytic hydration gives an aldehyde.
8- Used to prepare and explosive compound.
9- Reacts by addition and substitution.
10- Having three pi bonds.
2- Use the following table to answer the questions below:
Methane
Ethene
Ethyne
Ethane
n-hexane
propene
1- Write the structural formula for each compound in the above table.
2- Choose the compound (or compounds) which belongs to:
a- alkanes
b- alkenes
c- alkynes
d- unsymmetric alkenes
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Chapter 9________________________________________________
3- Use the suitable compound which is used to obtain:
(support your answer by chemical equations)
a- A compound used in the manufacture of Dacron fibers.
b- Aromatic benzene (write the name of the method used).
c- A compound was used as anathetic substance.
d- An aldehyde
e- Ethyl alcohol
f- A polymer used in manufacture of plastic sheets.
g- Ethane using two different compounds.
4- Show by chemical equations and the apparatus used to prepare each of the
following gases in lab:methane – ethene - ethyne
5- How can you differentiate between:
a- ethane and propene
b- Methane and ethene
c- Ethane and ethyne.
Question (7)
Choose the correct answer
1- The element which is found in the structure of all organic compounds is
a) hydrogen
b) carbon
c) nitrogen
d) oxygen
2- The organic compound obtained on heating an aqueous solution of silver
cyanate and ammonium chloride is ..............
a) silver chloride
b) ammonium cyanate
c) urea
d) ammonium cyanide
3- Organic chemistry studies the chemistry of carbon compounds except.....
a) carbon oxides
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Chapter 9________________________________________________
b) salts of carbonate and bicarbonate
c) cyanide salts
d) all the previous
4- The first scientist who prepare an organic compound in lab, is ..........
a) Brezilius
b) Wohler
c) Le vosiea
d) Boyle
5- The number of carbon atoms in alkane having 14 hydrogen atoms is...............
a) 14
b) 7
c) 6
d) 5
6- The number of hydrogen atoms in an alkane having 5- carbon atoms is ……….
a) 5
b) 12
c) 14
d) 10
7- The number of sigma bonds in an alkane having 4- carbon atoms is ……….
a) 4
b) 8
c) 10
d) 13
8- Alkenes and alkynes are considered from ........... hydrocarbons.
a) open - chain saturated
b) unsaturated cyclic
c) open - chain unsaturated
d) saturated cyclic
9- Saturated cyclic hydrocarbons which composed of three carbon atoms or more
are called....
a) alkanes
b) cycloalkanes.
c) alkynes
d) aromatic compounds
10- The formula of the polymer used in covering non-stick pans is ……….
 F F


| 
 |
a-  -C - C- 


 | | 
F F 

n
 F F


| 
 |
b-  -C - C- 


 | | 
 Cl Cl 

n
 FH FH 


| 
 |
c-  -C - C- 


 | | 
H

 Cl Cl  n
 F F


| 
 |
d-  -C - C- 


 | | 
F F 
 H Cl n
11- All the following alkenes are symmetric except ......
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Chapter 9________________________________________________
a) CH2 = CH2
b) CH3CH = CHCH3
c) CH3 -C = C - CH3
| |
CH3 CH3
d) CH3CH = CH2
12- Addition of unsymmetric reagent to unsymmetric alkene obeys ......rule.
a) Hund's
b) Markonikoff's
c) Schiff s
d) Baeyr's
13- Benzene may react by .......
a) substitution only
b) addition only
c) Addition and substitution
d) Elimination
14- The number of methyl groups (CH3) in 2-methyl pentane is............
a) 3
b) 2
c) 5
d) 4
15- The number of methylene group (CH2)2 in 2 methylpentane is
a) 3
b) 5
c) 2
d) 4
16- Organic compounds that having the molecular formula C3H6 is considered from
.......... hydrocarbons.
a) unsaturated aliphatic
b) saturated aliphatic
c) unsaturated cyclic
d) aromatic
17- Cyclohexane is an example from ..... hydrocarbons.
a) unsaturated aliphatic
b) saturated open-chain aliphatic
c) saturated cyclic aliphatic
d) aromatic
18- Benzene and naphthalene are considered from ......... hydrocarbons.
a) unsaturated aliphatic b) saturated aliphatic
c) saturated cyclic
d) unsaturated cyclic (aromatic)
19- In homologous series, each compound exceed than the previous one by ……….
group.
a) CH3
b) C2H5
c) CH2
d) CH3CH2
20- The molecular formula of an alkene having 4- carbon atoms is ……….
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Chapter 9________________________________________________
a) C4H4
b) C4H8
c) C4H10
d) C4H3
21- The chemical formula of 2- bromo -4- methyl pentane is ……….
Br
CH 3 Br
a-
b-
|
|
CH 3CH-CHCH 2 CH 3
Br
C2H5
CH3 – CH – CH2 – CH – CH3
CH3
Br CH 3
c- CH3 – CHCH2 – CHCH3
d-
|
|
CH 3 -CH-CHCH 3
22- All the following chemical formulae are correct except ……….
CH 3
a-
b- CH3CH
|
CH 3 -CH 2 -CH 3
CH 3 CH 3
CH 3
c-
CHCH3
d-
|
CH 3 -CH-CH 3
|
|
CH 3 -CH-CHCH 3
23- All these chemical formulae are incorrect except ……….
CH3Cl
O
a-
b- H– C
C – C – H2
O
c-
CH3 – C – CH3
O
d-
CH3 – C – CH2 = CH2
24- The value of the angle between the bonds in cyclobutane is …
a) 109°28ó
b) 107°
c) 60°
d) 90°
25- The most active compound from the following compounds is ........
a) cyclopropane
b) normal propane
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Chapter 9________________________________________________
c) cyclopentane
d) cyclohexane
26- The unsaturation in an organic compounds may be detected by
a) hydrogen peroxide.
b) acidified potassium permanganate
c) bromine dissolved in carbon tetrachloride
d) all are correct
27- Chlorination of nitro benzene gives......
a) meta-chloro nitrobenzene .
b) ortho chloro nitrobenzene.
c) para chloro nitrobenzene.
d) mixture of b and c.
28- Nitration of chloro benzene gives .........
a) meta-chloro nitrobenzene .
b) ortho-chloro nitrobenzene
c) para chloro nitrobenzene
d) mixture of b and c
29-Manufacturing detergents is based on ....... compound.
a) aromatic sulphonic acids.
b) aliphatic sulphonic acids.
c) Salt of aromatic sulphonic acids.
d) Salt of aliphatic sulphonic acids.
NO2
C
Cl
30- To prepare
O
we carry out ……….
a) chlorination of benzene then nitration of the product.
b) alkylation of benzene then nitration of the product.
c) nitration of benzene and alkylation of the product.
d) nitration of benzene then chlorination of the product.
31- Freons are composed of ……….
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Chapter 9________________________________________________
a) carbon and hydrogen only b) carbon and chlorine only
c) chlorine and fluorine only d) carbon, fluorine and chlorine
32- Alkanes differ from alkenes because they are
a) hydrocarbons
b) saturated compounds
c) compounds that react by addition
d) their molecular formula is CnH2n.
33- Bromine reacts with ethene and ………. is obtained.
a) bromo ethane
b) 1,2- dibromo ethene
c) 1,2- dibromoethane
d) 1,1- dibromo ethane
34- Reaction between bromine and ethene takes place by ……….
a) addition
b) condensation
c) neutralization
d) no correct answer
35-A pair of compounds which are considered as isomers is ……….
a) C2H4, C2H6
b) C2H5OH, CH3OCH3
c) C2H5COOH, CH3COOH
d) C6H6, C6H12
36- Formation of polyethylene is considered an example of ………. polymerization
a) condensation
b) addition
c) substitution
d) elimination
Br
|
37- This compound CH3 – C- CH3 is obtained on adding HBr to
|
CH3
CH3
|
a) CH3-CH-CH3
CH3
|
b) CH3-C=CH2
c) CH3-CH2-CH3
d) CH3CH=CH2
Question (8)
Give a scientific explanation for- each of the following:
1- The failure of vital force theory by Wohler,s experiment .
2- The molecular formula is not enough to express a given organic compound.
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Chapter 9________________________________________________
3- Ethanol and dimethyl ether are isomers.
4- Ethane is a saturated hydrocarbon while ethylene is an unsaturated one.
5- Alkanes, alkenes and alkynes form homologous series
6- Organic compounds does not conduct electricity.
7- The presence of a huge number of organic compounds.
8- Soda lime is used in preparation of' methane not caustic soda alone.
9- In 2020, the use of freons will be forbidden .
10- Halogenated alkanes have a great importance in our daily life.
11- Alkenes and alkynes are more reactive than alkanes.
12- Addition in alkenes takes place in one step where in alkyne it takes place in two
steps.
13- Ethylene glycol is used as on antifreeze in car radiators.
14- Bromine dissolved in carbon tetrachloride is not used to differentiate between
alkenes and alkynes.
15- 1,2 dichloro ethane is not formed when vinyl chloride reacts with hydrochloric
acid.
16- 1-Chloropropane is formed when propene reacts with hydrogen chloride.
17- 1-butene is unsymmenic alkene, while 2- butene is symmetric one.
18- Cyclopropane is more reactive than normal propane.
19- Both cyclopentane and cyclohexane are stable compounds.
20- D.D.T. is used as an insecticide.
21- D.D.T is not used now as insecticide in many countries.
22- Poly chloro diphenyl is used as insulator for fires.
23- TNT is used as an explosive.
24- Ethyne gas is passed in copper sulphate solution before collecting it.
25- Oxyacetylene flame is used for cutting and welding metals.
26- Detergents have great role in removing dirtes.
27- Nitration of chloro benzene gives two products while chloronation of nitrobenzene
gives one product.
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Chapter 9________________________________________________
28- The product of hydrolysis of ethyl hydrogen sulphate is different from the product
of its thermal degradation.
29- Baeyer's reaction is used to detect the presence of double bonds.
30- Sometimes ethyne burns with a smoky flame.
31- Halothane is preferred than chloroform as anesthetic substance.
32- Hydration of ethene takes place in the presence of conc. sulphuric acid.
33- Cigarette smoke has harmful effects on human health.
Question (9)
Write chemical equations that illustrate each of the following:
1- Conversion of a normal alkane to a cycloalkane.
2- Obtaining acetaldehyde from calcium carbide.
3- Conversion of ethanol to ethane.
4- Hydrolysis and thermal decomposition of ethyl hydrogen sulphate.
5- Catalytic hydration of ethyne then oxidation of the product.
6- Formation of dihydric alcohol (ethylene glycol) from a monohydric alcohol
(ethanol).
7- Conversion of acetylene to methane.
8- Addition of hydrogen bromide to propene.
9- Formation of 1,1 -dibromo ethane from acetylene.
10- Preparation of benzene sulphonic acid from normal hexane.
11- Conversion of phenol to toluene.
12- Obtaining an insecticide from acetylene.
13- Conversion of normal alkane into a cyclic alkane.
14- Obtaining ortho , para and meta nitro chloro benzene.
15- Passing phenol vapour over zinc dust then chlorination of the product.
16- Conversion of normal hexane into nitrobenzene.
17- Dropping water over calcium carbide then passing the gas evolved over a red
hot nickel tube.
18- Formation of cycloalkane (cyclohexane) from sodium benzoate.
19- Conversion of phenol to gamexane.
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Chapter 9________________________________________________
Question (10)
Polymers play a vital role in our daily life as they are used in many industries.
1- What is meant by:
a- Polymerization
b) Addition polymerization
c- Condensation polymerization
2- Show by chemical equation the steps of the formation of polyethylene.
3- Mention one use for each polymer from the following:
a- polyethylene
b- polypropylene
c- polyvinyl chloride
d- polytetrafluroethene
4- The formula of the monomers used to prepare of the following polymers:
 Cl Cl 


| 
 |
a)  -C - C- 


 | | 
H H 

n
 H CH 3 


| 
 |
b)  -C - C- 


 | |

H H


n
5- Write the three repeating unit "trimer" which is formed by addition
polymerization of:
a- tetrafluroethene
b- 2-methyl-2-propene
Question (11)
"Organic compounds react with different methods"
Give an example for each reaction from the following:
1- Substitution and elimination reactions of methane.
2- Addition reaction for ethene and another for ethyne.
3- Substitution and addition reactions for benzene.
4- Oxidation of ethylene by dil alkaline KMnO4.
5- Combusion of ethyne and benzene.
6- Dry distillation of sodium acetate and sodium benzoate.
7- Thermal catalytic cracking of normal octane.
8- Catalytic hydration of ethene and ethyne.
9- Sulphonation of toluene and benzene.
10- Nitration of toluene and benzene.
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Chapter 9________________________________________________
Answers of some questions on part (I)(Hydrocarbons)
Question (1) :A)1- C,E are saturated hydrocarbons while A,B,D are unsaturated .
2- A,D from alkenes while B from alkynes .
3- i , ii
Hydrocarbon
No.of C C σ bonds
No.of C H σ bonds
A
3
8
B
2
4
C
3
10
D
6
14
E
5
14
4,5
unsat Hydrocarbon
No.of pi π bonds
No.of H2 bonds
A
1
1
B
2
2
D
1
1
N.B No.of moles of hydrogen required to saturate the hydrocarbon no.of pi bonds in its
structure.
6 – ( A ) is symmetric alkene while ( B ) is unsymmetric one.
7Hydrocarbon
Its IUPAC Nome
A
2- butene
B
Propyne
C
2- methyl propane
D
2,3,3 – trimethyl-1- butene
E
3-methyl pentane
8- i – A , B and D
ii – A , B and D
iii – D
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Chapter 9________________________________________________
iv- C
∴ 15 = 3n
B 1- 17 = n + 2n +2
∴n = 5
No .of C atoms =5 ,
No .of H atoms =12
CH3
2- M.F.is C5H12
3- CH3CH2CH2CH2CH3
n-pentane
CH3
2- methylbutane
CH3
CH3
CHCH2CH3
C
( isopentane )
CH3
CH3
2,2 – dimethyl propane
( Neopentane )
∴ 15 = 3n
C- 1- 15= n + 2n
∴n = 5
H
M.F. is C5H10
C
H
2- 18=n + 2n
∴ 18 = 3n
C
H
∴n = 6
No. of H-atoms = 12
H
H
C
∴ 3n = 15
∴n = 5
C
H
H
C
H
H
3- n + 2n – 2 = 13
H
The structural formula
no . of carbon atams = 5
4- no . of carbon atoms in naphthalene = 10 atoms
no . of carbon atoms in diphenyl = 12 atoms
Question (3)
1- Vital force theory
2- molecular formula
3- Hydrocarbons
4- isomerism
5- homogenous series
6- freons
7- alkyl group
8- alkanes
9- cycloalkanes
10- alkenes
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Chapter 9________________________________________________
11- hydrogenation of oils
12- Markonikoff's rule
13- Nitration
14- Fridel Craft's alkylation
15- sulphonation
16- polymerization
17- structural formula
18- water gas
19- soda lime
20- alkynes
21- Catalytic hydration
22- thermal catalytic cracking
23- condensation polymerization 24- IUPAC
25- detergents
Question (5)
C)
1- There are 7 sigma bonds & 3 Pi bonds
2- 3 hydrogen moles
3- n-butane
4- (1) sp & (2) sp2
5- angel (3) = 120°
6- b) CH2-CH-CH2-CH-CH2-CH
|
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C≡CH C≡CH C≡CH
Question (7)
1- Carbon
2- urea
3- all the previous
4- Wohler
5- (6)
6- (12)
7- (13)
8- open – chain – saturated
9- Cycloalkanes
10- [CF2-CF2]n
11- CH3CH=CH2
12- Markonikoff's
13- Addition & substitution
14- (3)
15- (2)
16- Unsaturated aliphatic
17- saturated cyclic aliphatic
18- unsaturated cyclic (aromatic)
19- CH2
20- C4H8
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Chapter 9________________________________________________
Br
CH3
CH3
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21- CH3CHCH2 - CHCH3
22-CH3CH2CH3
O
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24- (90°)
23- CH3-C-CH3
25- cyclopropene
26- bromine in CCl4
27- meta nitro chlorobenzene
28- mixture of b and c
29- salt of aromatic sulphonic acids
30- chlorination then nitration 31- carbon, fluorine and chlorine
32- saturated compounds
33- 1,2-dibromo ethane
34- addition
35- CH3OCH3 & C2H5OH
36- addition
37- CH3C = CH2
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CH3