The reaction,

H2SO4 is the example of:

(a) sulphonation                            (b) dehydration

(c) alkylation                                 (d) decomposition

 

Concept Questions :-

Alkanes, Alkenes and Alkynes - Chemical Properties
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Which of the following reagents will be able to distinguish between 1-butyne and 2-butyne?

(a) NaNH2           (b) HCl             (c) O2             (d) Br2

Concept Questions :-

Alkanes, Alkenes and Alkynes - Chemical Properties
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2-bromopentane is heated with potassium ethoxide in ethanol. The major product obtained is  

1. 2-ethoxypentane               2. pentene-1

3. trans-pentene-2                4. cis-pentene-2

Concept Questions :-

Alkanes, Alkenes and Alkynes - Chemical Properties
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Alkene-1 on hydroboration followed with action of H2O2 gives:

(a) alkanol-2                                   (b) alkanol-1

(c) alkanal                                      (d) alkanone

Concept Questions :-

Alkanes, Alkenes and Alkynes - Chemical Properties
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Which of these will not react with acetylene?

1. NaOH                                       2. Amm. AgNO3

3. Na                                            4. HCl

Concept Questions :-

Alkanes, Alkenes and Alkynes - Chemical Properties
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R-CH2-CCl2-RReagentR-CC-R. The reagent is

1. Na                                     2. HCl in H2O

3. KOH in C2H5OH                 4. Zn in alcohol 

Concept Questions :-

Alkanes, Alkenes and Alkynes - Chemical Properties
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Silver acetylide when heated with HCl gives:

(a) C2H2                                (b) H2

(c) C2H4                                (d) C6H6

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In the following reaction the catalyst used is:

         C6H6 + 3H2

1. Cr2O3                                      2. Al2O3

3. Zn dust                                    4. Cr2O3 and Al2O3

Concept Questions :-

Alkanes, Alkenes and Alkynes - Chemical Properties
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Gammexane (a γ-isomer) is:

1. BHC                                          2. benzene hexachloride

3. lindane                                      4. all of these

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An alkene, obtained by the dehydration of an alcohol (A), on ozonolysis gives two molecules of acetaldehyde for every molecule of alkene. The alcohol (A) is:

(a) CH3CH2CH2OH                             (b) CH3CH2OH

(c) CH3CH=CHCH2OH                       (d) 

Concept Questions :-

Alkanes, Alkenes and Alkynes - Chemical Properties
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