Zn/AcOHO3A
A is:

1. 3-keto butanol

2. Butan-1,4-dial

3. 1-aldo-2-butanone

4. 2-keto butan-1,4-dial

Concept Questions :-

Alkanes, Alkenes and Alkynes - Chemical Properties
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A compound 'A'

1. Decolourises Baeyer's reagent

2. On hydroxylation and futher oxidation with KMnO4 gave formic acid and acetone

3. On ozonolysis gave one molecule of acetone and one of formaldehyde 'A' is

1. Propylene            2. Ethylene

3. n-butylene           4. Isobutylene

Concept Questions :-

Alkanes, Alkenes and Alkynes - Chemical Properties
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The most reactive of these compounds towards sulphonation is

1. Toluene                         2. Chlorobenzene

3. Nitrobenzene                 4. m-Xylene

Concept Questions :-

Aromatic Hydrocarbons - Functional Groups, Directive Influence in Monosubstituted Benzene
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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 same is

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

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

Concept Questions :-

Alkanes, Alkenes and Alkynes -Methods of Preparation
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The product obtained on heating n-heptane with Cr2O3-Al2O3 at 600°C is

1. cyclohexane                               2. cyclohexene

3. benzene                                    4. toluene

Concept Questions :-

Alkanes, Alkenes and Alkynes - Nomenclature and Isomerism
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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+

Concept Questions :-

Alkanes, Alkenes and Alkynes - Chemical Properties
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Which reagent distinguish propyne and propene?

1. Alkaline KMnO4

2. Cu2Cl2 + NH4Cl

3. Br2 water

4. Cu2Cl2 + NH4OH

Concept Questions :-

Alkanes, Alkenes and Alkynes - Chemical Properties
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When propane is reacted with conc. HNO3 at 400-500°C the number of nitro alkanes obtained are 

1. 1                              2. 2

3. 3                              4. 4  

Concept Questions :-

Alkanes, Alkenes and Alkynes - Nomenclature and Isomerism
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CHCHO3/NaOHXZn/CH3COOHY

Y is:

 

1.                      2. CH3CH2OH

3. CH3COOH                       4. CH3OH

Concept Questions :-

Alkanes, Alkenes and Alkynes - Chemical Properties
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Which alkene has smallest heat of hydrogenation?

1. CH3-CH=CH-CH3

2. CH32C=CH-CH3

3. CH2=CH-CH2-CH3

4. CH3-CH=CH-CHCH32

Concept Questions :-

Alkanes, Alkenes and Alkynes - Chemical Properties
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