An organic compound A on reduction gives compound B which on reaction with chloroform and potassium hydroxide forms C. The compound C on catalytic reduction gives N-methylaniline. The compound A is                                                               

1. Nitrobenzene

2. Nitromethane

3. Methylamine

4. Aniline

Subtopic:  Urea & Nitro Compound |
 69%
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 are ........... isomers.

1.Chain

2. functional

3. position

4. all of these

Subtopic:  Amines - Preparation & Properties | Urea & Nitro Compound |
 65%
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Primary, secondary and tertiary nitroalkanes can be identifier by the action of:

1. HNO2 + NaOH(aq)

2. CHCl3 + NaOH (aq)

3. CHCl3 + KOH(alc.)

4. none of these

Subtopic:  Urea & Nitro Compound |
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A nitrogenous substance X is treated with HNO2 and the product so formed is further treated with NaOH solution, which produces blue colouration. X can be:

1. CH3CH2NH2

2. CH3CH2NO2

3. (CH3)2C(N=O)(NO2)

4. (CH3)2CHNO2

Subtopic:  Urea & Nitro Compound |
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NH42SA0-5°CNaNO2/HClBC2H5OHC

Product (C) is 

1. Nitrobenzene

2. 1,3-Diethoxybenzene

3. Ethoxybenzene

4. Benzene

Subtopic:  Urea & Nitro Compound |
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Which of the following is regenerated at the end of the reaction

(1) X

(2) Y

(3) Z

(4) W

Subtopic:  Urea & Nitro Compound |
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Product (C) in the above reaction is:

1. 

2.

3. 

4.

Subtopic:  Urea & Nitro Compound |
 76%
From NCERT
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 (NH4)2SO4 + KCNO upon heating generates -

1. Nitrogen gas

2. Carbon dioxide

3. Biuret

4. Ammonium carbonate

Subtopic:  Urea & Nitro Compound | Mechanism |
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An organic compound X (mol. formula C6H5O2N) has 6 carbon atoms in a ring system, three double bonds and also a nitro group as substituent X is:

1. Homocyclic but not aromatic

2. Aromatic but not homocyclic

3. Homocyclic and aromatic

4. Heterocyclic

Subtopic:  Urea & Nitro Compound |
 69%
From NCERT
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A given nitrogen-containing aromatic compound a reacts with Sn/HCl, followed by HNO2 to give an unsatable compound B.B, on treament with phenol, forms a beautiful coloured compound C with the molecular formula C12H10N2O. The structure of compound A is

 

Subtopic:  Urea & Nitro Compound |
 73%
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