Which compound is most reactive towards nucleophilic addition?

1. CH3CHO

2. PhCOCH3

3. PhCOPh

4. CH3COCH3

कौन सा यौगिक नाभिकरागी योग के प्रति सबसे अधिक अभिक्रियाशील है?

1. CH3CHO

2. PhCOCH3

3. PhCOPh

4. CH3COCH3

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the IUPAC name of  is:  

(1) 6-oxohexanoic acid

(2) hexan-1-al-6-oic acid

(3) 1-aldo-hexanoic acid

(4) 6-aldo-hexan-1-oic acid

  का IUPAC नाम है:

1. 6-ऑक्सोहेक्सेनोइक अम्ल 

2. हेक्सेन-1-अल-6-ओइक अम्ल

3. 1-एल्डो-हेक्सेनोइक अम्ल

4. 6-एल्डो-हेक्सेन-1-ओइक अम्ल

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Identify X

1. CH3OH

2. Ethyl alcohol

3. Methyl cyanide

4. tert-Butyl alcohol

X की पहचान कीजिए|

1. CH3OH

2. एथिल एल्कोहॉल 

3. मेथिल साइनाइड

4. तृतीयक-ब्यूटिल एल्कोहॉल 

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An aldehyde which undergoes Cannizzaro's reaction and reduces Schiff's reagent but does not reduce Fehling's solution is:

(1) CH3CHO

(2) HCHO

(3) C6H5CHO

(4) salicylaldehyde

एक एल्डिहाइड, जो कैनिजारो अभिक्रिया देता है और शिफ अभिकर्मक को अपचयित करता है, लेकिन फेलिंग विलयन को अपचयित नहीं करता है:

1. CH3CHO

2. HCHO

3. C6H5CHO

4. सैलीसिलैल्डिहाइड

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The product 'C' is

(1)  
(2)
(3)
(4)

उत्पाद 'C' है

(1)  
(2)
(3)
(4)

 56%

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The product R is :

(1)  
(2)
(3)
(4)

उत्पाद R है:

(1)  
(2)
(3)
(4)

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Semicarbazide is:

(1) NH2CONH2

(2) NH2-NH2

(3) NH2CONHNH2

(4) None of these

 

सेमीकार्बेज़ाइड है:

1. NH2CONH2

2. NH2-NH2

3. NH2CONHNH2

4. इनमें से कोई नहीं

 

 53%

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The basicity order of I, II and III is

(1) III > I > II

(2) I > II > III

(3) III > II > I

(4) II > III > I

I, II और III का क्षारीय क्रम है

(1) III > I > II

(2) I > II > III

(3) III > II > I

(4) II > III > I

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In the Cannizzaro's reaction given below,

2Ph-CHOOH-Ph-CH2OH + PhCOO-

the slowest step is:

(1) The attack of OH- at the carbonyl group

(2) the transfer of hydride to the carbonyl group

(3) the abstraction of proton from the carboxylic acid

(4) the deprotonation of Ph-CH2OH

नीचे दी गई कैनिजारो अभिक्रिया में,

2Ph-CHOOH-Ph-CH2OH + PhCOO-

सबसे धीमा पद है:

1. कार्बोनिल समूह पर OHका आक्रमण 

2. कार्बोनिल समूह में हाइड्राइड का स्थानांतरण

3. कार्बोक्सिलिक अम्ल से प्रोटॉन का पृथक्करण

4. Ph-CH2OH का विप्रोटॉनन 

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In the reaction

the oxidizing agent can be

1. alkaline KMnO4

2. acidified K2Cr2O7

3. benedict's solution

4. All of the above

अभिक्रिया में,

ऑक्सीकारक हो सकता है-

1. क्षारीय KMnO4

2. अम्लीकृत K2Cr2O7

3. बेनेडिक्ट विलयन 

4. उपरोक्त सभी

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