Which is the most suitable reagent among the following to distinguish compound (III) from rest of the compounds?

I. CH3-CC-CH3

II. CH3-CH2-CH2-CH3

III. CH3-CH2-CCH

IV. CH3-CH=CH2

1. Br2/CCl4                                       

2. Br2/CH3COOH

3. Alk.KMnO4                                     

4. Ammoniacal AgNO3

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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The reaction, 

C6H6 + CH3ClAlCl3AnhydrousC6H5CH3 + HCl

is an example of:

1. Friedel-Crafts reaction                             

2. Kolbe's synthesis

3. Wurtz's reaction                                         

4. Grignard synthesis

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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Acetylene reacts with 42% H2SO4 containing 1% HgSO4 to give:

1. C2H5HSO4                               2. CH3CHO

3. HCHO                                       4. CH2=CH2

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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When CaC2 was hydrolysed a gas was obtained. It had a garlic odour due to phosgene present as impurity. The gas was passed through ammoniacal solution of Cu2Cl2, a red ppt. was obtained. The gas was:

1. ethylene                                       2. propyne

3. acetylene                                      4. ethane

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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Ozonolysis (O3H2O2) of, CH3-CH|CH3-CC-CH3 gives :

1.  CH3CH|CH3COOHCH3COOH

2. CH3CH|CH3CHO + CH3CHO

3. CH3CH|CH3CHO + CH3COOH

4. none of the above

 

Subtopic:  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 

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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The reaction,

H2SO4 is the example of:

(a) sulphonation                            (b) dehydration

(c) alkylation                                 (d) decomposition

 

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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The end product 'W' in the follownign sequence of reactions is :


 

1. 2.
3. \(Ph-CH_2-O-CH_2-CH_2-Ph\) 4. 
Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
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Consider the following reaction sequence

HNO3+H2SO4 Sn+HCl6HNaNO2+HClCu2CN2+HCNH2OProduct

 

Product is

(1) 
(2)
(3)
(4)
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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CH3Cl          CH4

Above conversion can be achieved by:

(a) Zn/H+

(b) LiAlH4

(c) Mg /(ether) then H2O

(d) all of these

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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