What is the product formed when n-heptane is heated with a mixture of Cr2O3 and Al2O3 at 600°C?

 

1. Cyclohexane      2. Cyclohexene
3. Benzene        4. Toluene

Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 72%
From NCERT
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The intermediate during the addition of HCl to propene in the presence of peroxide is

1. CH3C*HCH2Cl                     
2. CH3C+HCH3
3. CH3CH2CH2*                       
4. CH3CH2CH2+

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 60%
From NCERT
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Which reagent distinguish propyne and propene?

1. Alkaline KMnO4

2. Cu2Cl2 + NH4Cl

3. Br2 water

4. Cu2Cl2 + NH4OH

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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CHCHO3/NaOHXZn/CH3COOHY

Y is:

1.                      2. CH3CH2OH

3. CH3COOH                       4. CH3OH

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 68%
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The alkene among the following that has the smallest heat of hydrogenation is-

1. CH3-CH=CH-CH3

2. CH32C=CH-CH3

3. CH2=CH-CH2-CH3

4. CH3-CH=CH-CHCH32

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 55%
From NCERT
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Which of the following alkane will give the maximum number of isomers when monochloro substituted product is obtained

1. 2.
3. CH4 4.

Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
From NCERT
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The correct order of relative rates of hydrogenation of alkenes is:

1. Ethylene > propene > 2-butene > 2-methyl-2-butene

2. 2-methyl-2-butene > 2-butene > Propene > Ethylene

3. 2-butene > propene > ethylene > 2-methyl-2-butene

4. Propene > 2-butene > ethylene > 2-methyl-2-butene

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 58%
From NCERT
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NBS Products formed are

(A)                 (B) 

(C)                        (D) 

1. (A) and (B) only                        2. (A) and (C) only 

3. (B) and (C) only                        4. (A), (B), (C) and (D)  

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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CH3ClNaGas A

CH2COONa-CH2COONaElectrolysisKolbe'sGas B

Mg2C3H2OGas C

Gas (A+B+C) Cu2Cl2Ammoniacal

gas mixture Alk. KMnO4Cold dil Gas X

Gas X is-

1. Gas A + Gas B                      2. Only Gas B

3. Gas B + Gas C                      4. Only Gas A

Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation |
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The most reactive of these compounds towards sulphonation is

1. Toluene                         2. Chlorobenzene

3. Nitrobenzene                 4. m-Xylene

Subtopic:  Aromatic Hydrocarbons - Reactions & Mechanism |
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