Propyne on oxidation with SeO2 gives:

(1) CHOCHO                   

(2) CH3CH2CHO

(3) CH3COCHO               

(4) CHOCH2CHO

Subtopic:  Aldehydes & Ketones |
 58%
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NEET 2023 - Target Batch - Aryan Raj Singh
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When an alcoholic solution of ethylene dibromide is heated with granulated zinc, the compound formed is:

(1) ethane 

(2) ethylene

(3) butane

(4) isobutane

Subtopic:  Differentiation of Organic Compound |
 68%
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Acetylene and HCHO react in presence of copper acetylide catalyst to form:

(1) 2-butyne-1,4-diol

(2) 1-butyne-1,4-diol

(3) 2-butyne-1,2-diol

(4) none of these

Subtopic:  Aldehydes & Ketones |
 50%
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What would be the product formed when 1-bromo-3-chlorocyclobutane reacts with two equivalents of metallic sodium in ether?

1. 

2. 

3. 

4. 

 

 

Subtopic:  Ascending and Descending Series |
 79%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which of the following reagents would distinguish cis-cyclopenta-1, 2-diol from the trans-

isomer?

1. Ozone

2. MnO2

3. Aluminium isopropoxide

4. Acetone

Subtopic:  Differentiation of Organic Compound |
NEET - 2016
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NEET 2023 - Target Batch - Aryan Raj Singh
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In following reaction, find out X and Y.

In the reaction,
H-CC-H   (ii)CH3CH2Br(I)NaNH2/liq.NH3X
             X(ii)CH3CH2Br(i)NaNH2/liq.NH3Y

1. X=2-butyne ; Y=3-hexyne

2. X=2-butyne ; Y=2-hexyne

3. X=1-butyne ; Y=2-hexyne

4. X=1-butyne ; Y=3-hexyne

Subtopic:  Ascending and Descending Series |
 51%
NEET - 2016
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An organic compound X having molecular formula C5H10O yields phenyl hydrazone and

gives negative response to the iodoform test and Tollen's test. It produces n-pentane on

reduction. X could be

1. pentenal

2. 2-pentanone

3. 3-pentanone

4. n-amyl alcohol

Subtopic:  Aldehydes & Ketones |
 64%
NEET - 2015
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Which of the following will not be soluble in sodium hydrogen carbonate?

1. 2, 4,6 - trinitrophenol

2. benzoic acid

3. o-nitrophenol

4. Benzenesulphonic acid

Subtopic:  Differentiation of Organic Compound |
 55%
NEET - 2014
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In a reaction,

A is 

1. HgSO4/H2SO4

2. Cu2Cl2

3. H3PO2 and H2O

4. H+/H2O

Subtopic:  Aromatic Conversion |
 70%
NEET - 2013
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NEET 2023 - Target Batch - Aryan Raj Singh
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In the following sequence of reactions,

 CH3-Br KCNAH3O+BetherLiAlH4C

the end product C is

1. acetone

2. methane

3. acetaldehyde

4. ethyl alcohol

Subtopic:  Ascending and Descending Series |
 67%
NEET - 2012
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NEET 2023 - Target Batch - Aryan Raj Singh
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