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Worksheets

Xii A

Total questions: 126

Worksheet time: 1hrs 16mins

Name
Class
Date
1.

The hydrocarbon which can react with sodium in liquid ammonia is

(1) CH3CH2C ≡ CCH2CH3

(2) CH3CH2CH2C ≡ CCH2CH2CH3

(3) CH3CH2C ≡ CH

(4) CH3CH ≡ CHCH3

a)

1

b)

2

c)

3

d)

4

2.

Which one of the following is reduced with zinc and hydrochloric acid to give the corresponding hydrocarbon?

(1) Ethyl acetate

(2) Acetic acid

(3) Acetamide

(4) Butan-2-one

a)

1

b)

2

c)

3

d)

4

3.

Polysubstitution is a major drawback in

(a) Reimer-Tiemann reaction

(b) Friedel-Crafts acylation

(c) Friedel-Crafts alkylation

(d) Acetylation of aniline.

a)

1

b)

2

c)

3

d)

4

4.

In the presence of peroxide, HCl and HI do not give anti-Markovnikov’s addition to alkenes because

(1) All the steps are exothermic in HCl and HI

(2) One of the steps is endothermic in HCl and HI

(3) HCl is oxidizing and the HI is reducing

(4) Both HCl and HI are strong acids

a)

1

b)

2

c)

3

d)

4

5.

The reagent needed for converting

is

a)

H2 / lindlar Cat.

b)

Catalytic Hydrogenation

c)

LiAlH4

d)

Li/ NH3

6.

The gas evolved on heating CH3MgBr in methanol is

(1) methane

(2) ethane

(3) propane

(4) HBr

a)

1

b)

2

c)

3

d)

4

7.

Which one of the following has the minimum boiling point?

(1) n-Butane

(2) 1-Butyne

(3) 1-Butene

(4) Isobutene

a)

1

b)

2

c)

3

d)

4

8.

In the hydroboration – oxidation reaction of propene with diborane, H2O2 and NaOH, the organic compound formed is :

(1) CH3CH2CH2OH

( 2) (CH3)3COH

(3) CH3CHOHCH3

(4) CH3CH2OH

a)

1

b)

2

c)

3

d)

4

9.

The number and type of bonds in C22- ion in CaC2 are:

(1) Two σ bonds and one π – bond

(2) Two σ bonds and two π – bonds

(3) One σ bond and two π – bonds

(4) One σ bond and one π bond

a)

1

b)

2

c)

3

d)

4

10.

In the given transformation, which of the following is the most appropriate reagent?

a)

NaBH4

b)

NH2-NH2, OH

c)

Zn – Hg / HCl

d)

Na, Liq.NH3

11.

Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the presence of:-

(1) an isopropyl group

(2) an acetylenic triple bond

(3) two ethylenic double bonds

(4) a vinyl group

a)

1

b)

2

c)

3

d)

4

12.

Which branched chain isomer of the hydrocarbon with molecular mass 72 u gives only one isomer of mono substituted alkyl halide?

(1) Neopentane

(2) Isohexane

(3) Neohexane

(4) Tertiary butyl chloride

a)

1

b)

2

c)

3

d)

4

13.

One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of 44 u. The alkene is:-

(1) Ethene

(2) Propene

(3) 1-Butene

(4) 2-Butene

a)

1

b)

2

c)

3

d)

4

14.

Which one of the following classes of compounds is obtained by polymerization of acetylene?

(1) Poly-ene

(2) Poly-yne

(3) Poly-amide

(4) Poly-ester

a)

1

b)

2

c)

3

d)

4

15.

The gas liberated by the electrolysis of Dipotassium succinate solution is :

(1) Ethyne

(2) Ethene

(3) Propene

(4) Ethane

a)

1

b)

2

c)

3

d)

4

16.

CH3 – CH = CH2 is __________.

a)

aliphatic saturated

b)

aliphatic unsaturated

c)

alicyclic saturated

d)

alicyclic unsaturated

17.

is __________.

a)

aliphatic

b)

aromatic

c)

alicyclic

d)

None of these

18.

CH3 – CH2 – CH2 – CH3 is __________.

a)

aliphatic

b)

aromatic

c)

alicyclic

d)

None of these

19.

This prefix means 7

a)

but

b)

hept

c)

hex

d)

non

20.

propyl is a....

a)

three carbon chain

b)

three carbon side chain

c)

triple bond

21.

How many methyl groups are on the following molecule?

a)

1

b)

2

c)

3

d)

4

22.

How many carbons are in the longest chain?

a)

7

b)

8

c)

9

d)

10

23.

What group(s) is/are found on the following molecule?

a)

methyl

b)

ethyl

c)

butyl

d)

methyl and butyl

e)

all of the above

24.

What is wrong with the name 2,4-methylhexane

a)

inappropriate use of commas

b)

inappropriate use of dashes

c)

a prefix is missing

d)

a space is missing

25.

What is wrong with the name 1-methyl-3-cyclohexene

a)

prefixes

b)

numbering

c)

commas

d)

dashes

26.
Hydrocarbons are compounds that contain
a)
Carbon, only
b)
Carbon and Hydrogen, only
c)
Carbon, Oxygen, and Hydrogen, only
d)
Carbon, Oxygen, Hydrogen, and Nitrogen, only
27.

Name the following hydrocarbon

a)

cis-4-hexene

b)

trans-4-hexene

c)

trans-2-hexene

d)

cis-2-hexene

28.
a)
2,3-dimethyl-4,4-diethyl heptane
b)
2,3-methyl-4,4-ethyl heptane
c)
4,4-ethyl-2,3-methyl heptane
d)
4,4-diethyl-2,3-dimethyl heptane
29.
a)

4-ethyl-6-methylnonane

b)

3-propyl-5-methyloctane

c)

2,4-dipropylhexane

d)

4-ethyl-2-propylheptane

30.

What is the correct name for the following compound?

a)

3,4-dimethylheptane

b)

4-methyl-5-ethylhexane

c)

3-methyl-4-propylpentane

d)

4,5-dimethylheptane

31.

What is the correct name for the alkyne shown?

a)

butyne

b)

1-butyne

c)

2-butyne

d)

1-methyl-1-propyne

32.
Which of the following is an isomer of 2,2-dimethylheptane?
a)
2,2,3-trimethylpentane
b)
2,2,3,3-tetramethylpentane
c)
Octane
d)
2-methyl-3-ethylpentane
33.
a)
3-ethyl-2,2-dimethyl-3-hexyne
b)
4-ethyl-5,5-methyl-2-hexayne
c)
4-butyl-2-hexayne
d)
4-ethyl-5,5-dimethyl-2-hexyne
34.
How many carbon atoms are in ethane?
a)
1
b)
2
c)
3
d)
4
35.
Hydrocarbons are compounds that contain
a)
  Carbon and Nitrogen
b)
Carbon and Hydrogen 
c)
  Carbon, and Oxygen
d)
Carbon, Oxygen, and  Hydrogen 
36.
Which of the following compounds is an example of hydrocarbon?
a)
CO2
b)
C2H6
c)
C2H5OH
d)
CH3COOH
37.
Which of the following could contain a triple bond?
a)
C4H10
b)
C4H8
c)
C4H6
d)
C4H12
38.

WHICH of the following is not an isomer of C7H16

a)

2,3 dimethyl pentane

b)

2,2,3 trimethylbutane

c)

3-isopropyl pentane

d)

3-methylhexane

39.

which of the following has highest boiling point

a)

n-pentane

b)

isopentane

c)

neopentane

d)

all have same

40.

correct IUPAC name of following is

a)

5-Methyl 3,4 di isopropyl heptane

b)

3,4 Di isopropyl 5-methyl heptane

c)

3-Methyl 4,5 di isopropyl heptane

d)

3-Ethyl 2,5dimethyl 4-isopropyl heptane

41.

what is the product formed when hex-2 yne undergoes hydrogenation in presence of palladium

a)

cyclohexane

b)

hexane

c)

hex-3-yne

d)

hexan -2-ol

42.

A on reaction with sodium in presence of dry ether gives 2,3 dimethyl butane. what is A?

a)

2,3 dimethyl 1-chloro butane

b)

propanoic acid

c)

isopropyl chloride

d)

t-butyl chloride

43.

X + NaOH --CaO-------- benzene

what is X

a)

sodium phenoxide

b)

sodium benzoate

c)

sodium propanoate

d)

chlorobenzene

44.

product when sodium butanoate undergoes kolbe electrolysis

a)

hexane

b)

octane

c)

butane

d)

propane

45.

which of the halogen reacts fastest during halogenation of alkane

a)

Cl2

b)

F2

c)

Br2

d)

l2

46.

halogenation of alkane proceed via which type of mechanism?

a)

carbocation formation

b)

carbanion formation

c)

free radical formation

d)

transition state

47.

which of the following shows propagation step

a)

Cl2---- 2Cl.

b)

Cl.+Cl.------ Cl2

c)

Cl.+ CH4---CH3.+HCl

d)

Cl.+CH3.-------CH3Cl

48.

combustion reactions are

a)

always exothermic

b)

always endothermic

c)

some times exothermic and some times endothermic

d)

no heat involved

49.

CH4+O2--Mo2O3----heat-----

what is the product

a)

methanol

b)

methanoic acid

c)

ethane

d)

methanal

50.

n hexane--Cr2O3, 773 K, 10atm----

find the product

a)

hexanol

b)

hexene and hydrogen

c)

2-methyl pentane

d)

benzene

51.

Pick out the most reactive alkyl halide for an SN1 reaction.

a)
b)
c)
d)
52.

Which of the following alkyl halides will undergo SN1 reaction most readily?

a)

(CH3)3C-F

b)

(CH3)3C-Cl

c)

(CH3)3C-Br

d)

(CH3)3C-I

53.

Which of the following statement(s) is/are true for SN1 reaction?

I. The rate of SN1 reaction depends on concentration of alkyl halide

II. The rate of SN1 reaction depends on concentration of nucleophile

III. SN1 reactions of alkyl halides are favoured by non-polar solvents

a)

Only I

b)

Only II

c)

Only III

d)

Both I and III

54.
Reaction below shows SN1 reaction. Which statement is FALSE?
a)
Unimolecular collision
b)
OH- is a nucleophile
c)
Two step mechanism
d)
Molecularity is 2
55.
Solvent affects substitution reaction. SN1 reaction is favoured by
a)
protic solvent due to its ability to stablize carbocation
b)
aprotic solvent due its ability to stablize carbocation
c)
protic solvent due to hydrogen bonding
d)
aprotic solvent due to lack of hydrogen bonding
56.
Which of the following statements applies to the E2 mechanism?
a)
It occurs with inversion of stereochemistry
b)
It occurs with racemization
c)
It proceeds through the more stable carbocation intermediate.
d)
The C-H and C-X bonds that break must be anti.
57.

What is the type of reaction in chemical reactions where dehydration occurs?

a)

Addition

b)

Substitution

c)

Rearrangement

d)

Elimination

58.

Toluene reacts with a halogen in the presence of iron (III) chloride giving ortho and para halo compounds. The reaction is

a)

Electrophilic elimination reaction

b)

Electrophilic substitution reaction

c)

Free radical addition reaction

d)

Nucleophilic substitution reaction

59.

Which reagent will you use for the following reaction? CH3CH2CH2CH3 ⎯⎯→ CH3CH2CH2CH2Cl + CH3CH2CHClCH3

a)

Cl2/UV light

b)

NaCl + H2SO4

c)

Cl2 gas in dark

d)

Cl2 gas in the presence of iron in dark

60.

Which of the following is an example of vic-dihalide?

a)

Dichloromethane

b)

1,2-dichloroethane

c)

Ethylidene chloride

d)

Allyl chloride

61.

The position of –Br in the compound in CH3CH=CHC(Br)(CH3)2 can be classified as ____________.

a)

Allyl

b)

Aryl

c)

Vinyl

d)

Secondary

62.

Chlorobenzene is formed by reaction of chlorine with benzene in the presence of AlCl3. Which of the following species attacks the benzene ring in this reaction?

a)

Cl–

b)

Cl+

c)

AlCl3

d)

[AlCl4]–

63.

Ethylidene chloride is a/an ______________.

a)

vic-dihalide

b)

gem-dihalide

c)

allylic halide

d)

vinylic halide

64.

A primary alkyl halide would prefer to undergo _____________.

a)

SN1 reaction

b)

SN2 reaction

c)

α–Elimination

d)

Racemisation

65.

Which of the following alkyl halides will undergo SN1 reaction most readily?

a)

(CH3)3C—F

b)

(CH3)3C—Cl

c)

(CH3)3C—Br

d)

(CH3)3C—I

66.

Which is the correct IUPAC name for CH3-CH(C2H5) -CH2-Br?

a)

1-Bromo-2-ethylpropane

b)

1-Bromo-2-ethyl-2-methylethane

c)

1-Bromo-2-methylbutane

d)

2-Methyl-1-bromobutane

67.

What should be the correct IUPAC name for diethylbromomethane?

a)

1-Bromo-1,1-diethylmethane

b)

3-Bromopentane

c)

1-Bromo-1-ethylpropane

d)

1-Bromopentane

68.

Which is the correct increasing order of boiling points of the following compounds? 1-Iodobutane, 1-Bromobutane, 1-Chlorobutane, Butane

a)

Butane < 1-Chlorobutane < 1-Bromobutane < 1-Iodobutane

b)

1-Iodobutane < 1-Bromobutane < 1-Chlorobutane < Butane

c)

Butane < 1-Iodobutane < 1-Bromobutane < 1-Chlorobutane

d)

Butane < 1-Chlorobutane < 1-Iodobutane < 1-Bromobutane

69.

Which is the correct increasing order of boiling points of the following compounds?

1-Bromoethane, 1-Bromopropane, 1-Bromobutane, Bromobenzene

a)

Bromobenzene < 1-Bromobutane < 1-Bromopropane < 1-Bromoethane

b)

Bromobenzene < 1-Bromoethane < 1-Bromopropane < 1-Bromobutane

c)

1-Bromopropane < 1-Bromobutane < 1-Bromoethane < Bromobenzene

d)

1-Bromoethane < 1-Bromopropane < 1-Bromobutane < Bromobenzene

70.

Arrange the above compounds in the increasing order of their densities

a)

(a) < (b) < (c) < (d)

b)

(a) < (c) < (d) < (b)

c)

(d) < (c) < (b) < (a)

d)

(b) < (d) < (c) < (a)

71.

In which of the above molecules carbon atom marked with asterisk (*) is asymmetric?

a)

(a), (b), (c), (d)

b)

(a), (b), (c)

c)

(b), (c), (d)

d)

(a), (c), (d)

72.

What is ‘A’ in the reaction?

a)
b)
c)
d)
73.

Which of the carbon atoms present in the molecule given below are asymmetric?

a)

a, b, c, d

b)

b, c

c)

a, d

d)

a, b, c

74.

Which of the statements are correct about above reaction?

a)

(a) and (e) both are nucleophiles.

b)

In (c) carbon atom is sp3 hybridised.

c)

In (c) carbon atom is sp2 hybridised.

d)

(a) and (e) both are electrophiles.

75.

Which of the following statements are correct about the reaction intermediate?.

a)

Intermediate (c) is unstable because in this carbon is attached to 5 atoms.

b)

Intermediate (c) is unstable because carbon atom is sp2 hybridised.

c)

Intermediate (c) is stable because carbon atom is sp2 hybridised

d)

Intermediate (c) is less stable than the reactant (b).

76.

Haloalkanes contain halogen atom (s) attached to the sp3 hybridised carbon atom of an alkyl group. Identify haloalkane from the following compounds.

a)

2-Bromopentane

b)

Vinyl chloride (chloroethene)

c)

2-chloroacetophenone

d)

Trichloromethane

77.

Alkyl halides are prepared from alcohols by treating with

a)

HCl + ZnCl2

b)

Red P + Br2

c)

H2SO4 + KI

d)

All the above

78.

For which of the following transformations does the reactive carbon undergo a change in hybridization?

a)

methane to chloromethane

b)

methanol to methanal

c)

methanal to methanoic acid

d)

chloromethane to methanol

79.

Which molecule does not act as a nucleophile in a reaction with a halogenoalkane?

a)

Water

b)

Ethanol

c)

Hydroxide ion

d)

Ammonium ion

80.

Which compounds reacts fastest with water?

a)

(CH3)3CBr

b)

(CH3)3CCl

c)

CH3CH2CH2CH2Br

d)

CH3CH2CH2CH2Cl

81.

The reaction between 2-chloro-2-methylpropane, (CH3)3CCl, and aqueous sodium hydroxide is an example of

a)

Unimolecular nucleophilic addition

b)

Bimolecular nucleophilic addition

c)

Unimolecular nucleophilic substitution

d)

Bimolecular nucleophilic substitution

82.

Which statement about the reactions of halogenoalkanes with aqueous sodium hydroxide is correct?

a)

Primary halogenoalkanes react mainly by SN1 mechanism.

b)

Chloroalkanes react faster than iodoalkanes.

c)

Tertiary halogenoalkanes react faster than primary halogenoalkanes.

d)

The rate of an SN1 reaction depends on the concentration of aqueous hydroxide.

83.

Which one of the following carbonium ions (carbocations) is most stable?

a)
b)
c)
d)
84.

Which is correct about the order and rate of hydrolysis (relative to 1-iodobutane) for 2-iodo-2-methylpropane, (CH3)3Cl?

a)

A

b)

B

c)

C

d)

D

85.

Which of the chloroalkanes below will hydrolyse most rapidly?


a)

CH3CH2CH2CH2Cl

b)

CH3CH(CH3)CH2Cl

c)

CH3CH2CHClCH3

d)

(CH3)2CClCH2Cl

86.

Which substance(s) is(are) most likely to react with hydroxide ions by means of a SN2 mechanism?

I. C6H5Cl

II. (CH3)3CCl

III. (CH3)2CHCH2Cl

IV. CH3CH2CH2CH2Cl

a)

I and III

b)

I and IV

c)

III and IV

d)

I, III and IV

87.

Which statement is incorrect regarding the reaction of ammonia with alkyl halides?

a)

This is a Lewis acid base reaction

b)

Ammonia acts as a nucleophile and forms dative bond with the carbon

c)

The product of the reaction is an amine

d)

The hybridisation of the carbon atom that receives the ammonia molecule changes from sp3 to sp2

88.

In SN1 reaction, racemisation occurs if the reaction occurs at a stereogenic centre, however, 50:50 mixture of enantiomers are rarely obtained, why?

a)

Usually one enantiomer is more stable than other

b)

Retention of configuration is always favoured in reaction

c)

Hydroxylic solvent favour retention of configuration

d)

There is steric hindrance to the approach of nucleophile from the front side as some of the leaving group are not departed completely which favour inversion of configuration

89.

Pick out the most reactive alkyl halide for an SN1 reaction.

a)
b)
c)
d)
90.

Pick out the compound which reacts fastest in the presence of AgNO3.

a)

(CH3)3CCI

b)

(CH3)2CHCH2CI

c)

(CH3)2CHCI

d)

CH3CH2CI

91.

From the following, pick out the explanation for why molecule Y hydrolyses faster than molecule Z.

a)

Less steric hindrance

b)

Neighbouring group participation

c)

Greater carbocation stability

d)

Better solvent

92.

Which of the following statement(s) is/are true for SN1 reaction?

I. The rate of SN1 reaction depends on concentration of alkyl halide

II. The rate of SN1 reaction depends on concentration of nucleophile

III. SN1 reactions of alkyl halides are favoured by non-polar solvents

a)

Only I

b)

Only II

c)

Only III

d)

Both I and III

93.

From the following, pick out the potential energy profile for a SN1 reaction.

a)
b)
c)
d)
94.

The most and least reactive electrophiles respectively in a SN1 reaction are

a)

I and II respectively

b)

II and III respectively

c)

I and III respectively

d)

III and IV respectively

95.

Pick out the following factor(s) which promote a SN1 reaction :

I. Temperature

II. Concentration of nucleophile

III. Concentration of alkyl halide

IV. Aprotic solvents

a)

Both I and II

b)

Both II and III

c)

Both III and IV

d)

Both I and III

96.

Which of the following is true regarding a SN1 reaction?

a)

It would be faster at 25°C than at 50°C

b)

it would be faster in ethanol than in pentane

c)

Keeping the moles of reactants constant but doubling the quantity of solvent would decrease the rate by a factor of 4

d)

Stereochemical inversion occurs exclusively

97.

Rank the following molecules increasing in order of relative rate of SN1 solvolysis with methanol and heat.

a)

Ill < II < IV < V < I

b)

II < III < IV < I < V

c)

V < IV < III < II < I

d)

II < III < IV < V < I

98.

Which is the most likely product when the following iodide is heated with water?

a)
b)
c)
d)
99.

When the reactants shown undergo substitution, which of the products will form?


This question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.

a)
b)
c)
d)
100.

Which is the correct increasing order of boiling points of the following compounds? 1-Iodobutane, 1-Bromobutane, 1-Chlorobutane, Butane

a)

Butane < 1-Chlorobutane < 1-Bromobutane < 1-Iodobutane

b)

1-Iodobutane < 1-Bromobutane < 1-Chlorobutane < Butane

c)

Butane < 1-Iodobutane < 1-Bromobutane < 1-Chlorobutane

d)

Butane < 1-Chlorobutane < 1-Iodobutane < 1-Bromobutane

101.

Assertion (A): Phosphorus chlorides (tri and penta) are preferred over thionyl chloride for the preparation of alkyl chlorides from alcohols.

Reason (R): Phosphorus chlorides give pure alkyl halides.

a)

Assertion and Reason both are correct and Reason is the correct explanation of Assertion.

b)

Assertion and Reason both are correct statements but Reason is not the correct explanation of Assertion.

c)

Assertion is correct but Reason is wrong.

d)

Assertion and Reason both are wrong statements

102.

Assertion: Electron withdrawing groups in aryl halides increases the reactivity towards nucleophilic substitution.

Reason: 2, 4-Dinitrochlorobenzene is more reactive than chlorobenzene.

a)

Both assertion and reason are true and the reason is the correct explanation of the assertion.

b)

Both assertion and reason are true but reason is not the correct explanation of the assertion

c)

Assertion is true but reason is false

d)

Assertion is false but reason is true.

103.

Assertion: Halogen acids react with alcohols to form haloalkanes.

Reason: Order of reactivity of halogen acids HCl>HBr>HI

a)

Both assertion and reason are true and the reason is the correct explanation of the assertion.

b)

Both assertion and reason are true but reason is not the correct explanation of the assertion.

c)

Assertion is true but reason is false.

d)

Assertion is false but reason is true.

104.

Which of the following is a chiral molecule?

a)

CH2BrI

b)

CH3CBr2Cl

c)

(CH3)2CHCl

d)

CH3CHBrCH2CH3

105.

Ambident nucleophile is

a)

CN

b)

H2O

c)

Cl

d)

NH2

106.

Which of the following undergoes nucleophilic substitution exclusively by SN1 mechanism?

a)

Ethyl chloride

b)

Isopropyl chloride

c)

Choro benzene

d)

Benzyl chloride

107.

When excess chlorine is used in electrophilic substitution of toluene, which of the following dichloroarenes are formed?

a)

Ortho and meta

b)

Ortho and para

c)

Meta and para

d)

Ortho, meta and para

108.

complete the following reaction
R-OH + X →\rightarrow RCl + SO2 + HCl

a)

SO2

b)

SOCl3

c)

SOCl2

d)

SOCl

109.

Complete the following reaction
R-OH + PCl5 →\rightarrow  RCl + X + HCl
X is

a)

PCl3

b)

PCl5

c)

POCl3

d)

POBr3

110.

Ethylidene chloride is a/an ______________.

a)

vic-dihalide

b)

gem-dihalide

c)

allylic halide

d)

vinylic halide

111.

Which reagent will you use for the following reaction?

CH3CH2CH2CH3 → CH3CH2CH2CH2Cl + CH3CH2CHClCH3

a)

Cl2 /UV light

b)

NaCl + H2SO4

c)

Cl2 gas in dark

d)

Cl2 gas in the presence of iron in dark

112.
What is the general formula of the alkynes?
a)
CnH2n+1
b)
CnH2n+2
c)
CnH2n-1
d)
CnH2n-2
113.
What is the general formula for saturated hydrocarbons?
a)
CnH2n
b)
CnHn+1
c)
CnH2n+1
d)
CnH2n+2
114.

In organic chemistry, commas separate....

a)

numbers

b)

names from numbers

115.
In organic chemistry, dashes separate....
a)
numbers
b)
names from numbers
116.
What is the structure of 2-methyl pent-2-ene ?
a)
a
b)
b
c)
c
d)
d
117.

Name the following molecule:

a)

3,3-dimethyl-1-butanol

b)

3,3-methyl-1-butanol

c)

2,2-dimethyl-4-butanol

d)

3,3,3-trimethyl-1-propanol

118.

Which is the structures with IUPAC nomenclature


2,2,4-trimethylpentane

a)
b)
c)
d)
119.

How many structural isomers does C5H12 have?

a)

2

b)

3

c)

5

d)

9

120.

Which is the name of this compound?

a)

3-ethyl-2,2-dimethylhex-3-yne

b)

4-ethyl-5,5-methylhex-2-yne

c)

4-butylhex-2-yne

d)

4-ethyl-5,5-dimethylhex-2-yne

121.

Give the IUPAC name for this compound

a)

3-methyl-4-ethylhexane

b)

3-ethyl-4-methylhexane

c)

3-methyl-4-ethylheptane

d)

3-ethyl-4-methylheptane

122.
Why do alkane not dissolve in water?
a)
they are less dense than water
b)
they have low melting points
c)
they are non-polar compounds 
d)
they are chemically less reactive
123.

Give IUPAC nomenclature for this compound

a)

2,7-dimethyl-5-ethyloctane

b)

5-ethyl-2,7-dimethyloctane

c)

2,7-dimethyl-3-ethyloctane

d)

4-ethyl-2,7-dimethyloctane

124.

Name this molecule

a)

2-methyl-but-1-yne-3-ene

b)

1-methyl-but-1-yne-3-ene

c)

2-methyl-but-1-ene-3-yne

d)

1-methyl-but-1-ene-3-yne

125.
Which of the following is not a halide?
a)
Cl
b)
S
c)
Br
d)
I
126.
Name this molecule:
a)
trifluoro-1-methylmethane
b)
1,1,1-trifluoromethane
c)
trifluorethane
d)
1,1,1-trifluoroethane

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