A nitrogeneous 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. CH3CH2ONO

4 (CH3)2CHNO2

Subtopic:  Differentiation of Organic Compound |
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The compound which reacts fastest with Lucas reagent at room temperature is:
1. Butan-1-ol
2. Butan-2-ol
3. 2-methylpropan-1-ol
4. 2-methylpropan-2-ol

Subtopic:  Differentiation of Organic Compound |
 75%
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An amine is reacted with benzene sulphonyl chloride then a solid compound is formed which is insoluble in alkali. The amine is:

1. CH3-CH2-NH2

2. CH3-NH-CH2-CH3

3. (CH3)3N

4. C6H5-NH2

Subtopic:  Differentiation of Organic Compound |
 69%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

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A positive carbylamine test is shown by which one of the following?
1. N, N-diethyl aniline
2. N-methyl propyl amine
3. N, N-diethyl butyl amine
4. 2, 4-dimethyl aniline

Subtopic:  Differentiation of Organic Compound |
 63%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

Victor Meyer Test is used for the distinguished of 1°, 2° and 3°

1. Alcohols

2. Alkyl halides

3. Nitro Compounds

4. All of these

Subtopic:  Differentiation of Organic Compound |
 62%
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Which of the following gives the fastest Lucas test?

1. CH2 = CH-CH2OH 2. C6H5 - CH2OH
3. 4.

Subtopic:  Differentiation of Organic Compound |
 77%
From NCERT
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The reaction, CH2=CHCHOHXgives:

(1) CH3CHXCHO

(2) CH2XCHCHO

(3) CH2=CHCHX2

(4) none of these

Subtopic:  Differentiation of Organic Compound |
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An unknown compound A has a molecular formula C4H6. When A is treated with excess of Br2 a new substance B with formula C4H6Br4 is formed. A forms a white ppt. with ammoniacal silver nitrate solution. A may be-

1. But-1-yne

2. But-2-yne

3. But-1-ene

4. But-2-ene

Subtopic:  Differentiation of Organic Compound |
 64%
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The appropriate reagent for the following transformation,

  is :

 

(1) Zn(Hg),HCl

(2) NH2NH2, OH-

(3) H2/Ni

(4) NaBH4

Subtopic:  Differentiation of Organic Compound |
 61%
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The reduction of an alkyne to alkene using Lindlar's catalyst results into:

(1) cis-addition of hydrogen atoms

(2) trans-addition of hydrogen atoms

(3) a mixture obtained by cis- and trans-additions of hydrogen which are in equilibrium with each other

(4) a mixture obtained by cis- and trans-additions of hydrogen atoms which are not in equilibrium with each other.

Subtopic:  Differentiation of Organic Compound |
 67%
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