The correct chain isomer of C6H14(n-hexane) among the following are:
a. 2-Methylpentane
b. 2,3-Dimethylbutane
c. 2-Ethylbutane

1. a, c 2. a, b
3. b, c 4. a, b, c
Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
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Match the items of Column I with items of Column II.

Column I
(Organic compound)

Column II
(IUPAC Name)

a. 

(CH3)3 CCH2C(CH3)3

i. 3,3-Di-tert-butyl-2,2,4,4-tetramethylpentane
b.

(CH3)2 C(C2H5)2

ii.

2,2,4,4-Tetramethylpentane

c. Tetra – tert-butyl methane iii.

3,3-Dimethylpentane

  

1. a = i; b = ii; c = iii 2. a = iii; b = ii; c = i
3. a = ii; b = iii; c = i 4. a = iii; b = i; c = ii
Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 85%
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The correct IUPAC name among the following is/are-


a. 2-Ethylpentane

b. 5-Ethyl–3-methylheptane
c. 3-Ethyl-2-methyloctane
d. 3-Ethyl-2,4-dimethylheptane

1. a, b 2. b, c
3. c, d 4. a, d
Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 56%
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Reactant A in the following reaction is:

A  + NaOH \(\xrightarrow[\Delta ]{CaO}\) CH3CH2CH3 + Na2CO3

1. Sodium ethanoate

2. Sodium propanoate

3. Sodium butanoate

4. Sodium methanoate

Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation |
 75%
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Match the items of column I with items of column II.

Column I

Column II

a.

i. 1,3,5,7-Octatetraene

b.

ii. 4-Ethyl-2,6-dimethyl-dec-4-ene

c. 

iii. 2,8-Dimethyl-3, 6-decadiene

d. CH2=C(CH2CH2CH3)2

iv. 2-n-Propylpent-1-ene

1. a= iii; b = iv; c= ii; d = i

2. a = i; b = iii; c = ii; d = iv

3. a = ii; b = i; c = iv; d = iii

4. a = iv; b = i; c = ii; d = iii

Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 93%
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Match the items of Column I with items of Column II.

Column I
(Compound)
Column II
(Number of Bonds)
a.  i.  σ bonds : 33, π bonds : 2
b.  ii.  σ bonds : 7, π bonds : 4
c.  iii.  σ bonds : 23, π bond : 1
d.  iv.  σ bonds : 41, π bond : 1
 

1. a = iii; b = iv; c = ii; d = i

2. a = ii; b = iv; c = i; d = iii

3. a = ii; b = i; c = iv; d = iii

4. a = iv; b = i; c = ii; d = iii

Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 85%
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How many structural isomers of C₅H₁₀ are possible if cyclic structures are excluded?

1. 6

2. 4

3. 5

4. 7

Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 50%
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The IUPAC name of the given compound is-

 

1. trans-1,2-Chloroethene
2. cis-1,2-Chloroethane
3. trans-1,2-Dichloroethene
4. cis-1,2-Dichloroethene

Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 83%
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The compound(s) among the following that show cis-trans isomerism is/are:

i. (CH3)2C = CH – C2H5

ii. CH2 = CBr2

iii. C6H5CH = CH – CH3

iv. CH3CH = CCl - CH3

1. Only iii 2. iii, iv
3. iii, i 4. i, ii
Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 79%
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Consider the following reaction

The product A and B are respectively:

1. 1-Bromohexane; 2-Bromohexane

2. 2-Bromohexane; 1-Bromohexane

3. 1-Bromohexane; 3-Bromohexane

4. 3-Bromohexane; 2-Bromohexane

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 85%
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