The major products(s) of following reaction is (are):

 

$\stackrel{aqyeiys \backslash B{r}_2(3.0 equivalents)}{\to } ?$

(1) P

(2) Q

(3) R

(4) S

निम्नलिखित अभिक्रिया के मुख्य उत्पाद है (हैं):

1. P

2. Q

3. R

4. S

a-chloropropionic acid on treatement with alcoholic KOH followed by acidification gives:

1. ${\mathrm{CH}}_3-\mathrm{CH}\left(\mathrm{OH}\right)-\mathrm{COOH}$

2. ${\mathrm{CH}}_2=\mathrm{CH}-\mathrm{COOH}$

3. $\mathrm{HO}-{\mathrm{CH}}_2-{\mathrm{CH}}_2\mathrm{\_COOH}$

4. None of these

a-क्लोरोप्रोपेनोइक अम्ल एल्कोहॉलिक KOH के साथ उपचार के बाद अम्लीयकरण द्वारा देता है:

$$\begin{gathered} 1.<mspace\; width="1em"></mspace>{\mathrm{CH}}_3-\mathrm{CH}\left(\mathrm{OH}\right)-\mathrm{COOH} \\ 2.<mspace\; width="1em"></mspace>{\mathrm{CH}}_2=\mathrm{CH}-\mathrm{COOH} \\ 3.<mspace\; width="1em"></mspace>\mathrm{HO}-{\mathrm{CH}}_2-{\mathrm{CH}}_2\mathrm{\_COOH} \\ 4.<mspace\; width="1em"></mspace>\text{इनमें\hspace{0.17em}से\hspace{0.17em}कोई\hspace{0.17em}नहीं\hspace{0.17em}} \end{gathered}$$

An ester is boiled with KOH. The product is cooled and acidified with conc. HCl. A white crystalline acid separates. The ester is

1. methyl acetate                       

2. ethyl acetate

3. ethyl formate                         

4. ethyl benzoate

एक एस्टर को KOH के साथ उबाला जाता है। उत्पाद को सांद्र HCl के साथ ठंडा और अम्लीकृत किया जाता है। एक सफेद क्रिस्टलीय अम्ल पृथक हो जाता है। एस्टर है:

1. मेथिल एसीटेट       

2. एथिल एसीटेट

3. एथिल फॉर्मेट         

4. एथिल बेंजोएट

When ${\mathrm{CH}}_2=\mathrm{CH}-\mathrm{COOH}$ is reduced by LiAlH₄, the compound obtained is :

(1) CH₃CH₂COOH

(2) CH₂=CHCH₂OH

(3) CH₃CH₂CH₂OH

(4) CH₃CH₂CHO

जब ${\mathrm{CH}}_2=\mathrm{CH}-\mathrm{COOH}$ को LiAlH₄ द्वारा अपचयित किया जाता है, प्राप्त यौगिक है:

1. CH₃CH₂COOH

2. CH₂=CHCH₂OH

3. CH₃CH₂CH₂OH

4. CH₃CH₂CHO

Wacker method is used to convert alkene into corresponding ......... using PdCl₂.

(1) alcohol

(2) ketone

(3) aldehyde

(4) acid

वाकर विधि का उपयोग PdCl₂ का उपयोग करके एल्कीन को संबंधित ........ में परिवर्तित के लिए किया जाता है। 

1. एल्कोहॉल 

2. कीटोन

3. एल्डिहाइड

4. अम्ल 

In Etard's reaction, toluene is oxidised to benzaldehyde using:

1. H₂O₂

2. Cl₂

3. chromium trioxide or CrO₂Cl₂

4. KMnO₄

ईटार्ड अभिक्रिया में, टॉलूईन किसका उपयोग कर बेन्ज़ैल्डिहाइड में ऑक्सीकृत हो जाता है:

1. H₂O₂

2. Cl₂

3. क्रोमियम ट्राइऑक्साइड या CrO₂Cl₂

4. KMnO₄

Consider the following compounds :

The Correct decreasing order of their reactivity towards hydrolysis is : 

1. (ii) > (iv) > (iii) > (i)

2. (i) > (ii) > (iii) > (iv)

3. (iv) > (ii) > (i) > (iii)

4. (ii) > (iv) > (i) > (iii)

निम्नलिखित यौगिकों पर विचार कीजिए:

जल-अपघटन के प्रति उनकी अभिक्रियाशीलता का सही घटता क्रम है:

1. (ii) > (iv) > (iii) > (i)

2. (i) > (ii) > (iii) > (iv)

3. (iv) > (ii) > (i) > (iii)

4. (ii) > (iv) > (i) > (iii)

$\underset{∆}{\overset{{\mathrm{P}}_2{\mathrm{O}}_5}{\to }}$Product

Product is?

(1)

(2)

(3)

(4)

$\underset{∆}{\overset{{\mathrm{P}}_2{\mathrm{O}}_5}{\to }}$ उत्पाद

उत्पाद है?

(1)

(2)

(3)

(4)

The aldol condensation of acetaldehyde results in hte formation of:

1. ${\mathrm{CH}}_3<mspace\; width="1em"></mspace>\mathrm{C}<mspace\; width="1em"></mspace>{\mathrm{CHCH}}_3$
$<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>\left|\right|<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>|$
$<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>\mathrm{O}<mspace\; width="1em"></mspace>\mathrm{OH}$

2. ${\mathrm{CH}}_3<mspace\; width="1em"></mspace>{\mathrm{CHCH}}_2<mspace\; width="1em"></mspace>\mathrm{CH}$
$<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>|<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>||$
$<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>\mathrm{OH}<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>\mathrm{O}$

3. ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CH}—\mathrm{CH}$
$<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>|<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>||$
$<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>\mathrm{OH}<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>\mathrm{O}$

4. ${\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{OH}+\mathrm{COOH}$

एसीटैल्डिहाइड के एल्डोल संघनन के परिणामस्वरूप निर्मित होता है:

1. ${\mathrm{CH}}_3<mspace\; width="1em"></mspace>\mathrm{C}<mspace\; width="1em"></mspace>{\mathrm{CHCH}}_3$
$<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>\left|\right|<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>|$
$<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>\mathrm{O}<mspace\; width="1em"></mspace>\mathrm{OH}$

2. ${\mathrm{CH}}_3<mspace\; width="1em"></mspace>{\mathrm{CHCH}}_2<mspace\; width="1em"></mspace>\mathrm{CH}$
$<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>|<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>||$
$<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>\mathrm{OH}<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>\mathrm{O}$

3. ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CH}—\mathrm{CH}$
$<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>|<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>||$
$<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>\mathrm{OH}<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>\mathrm{O}$

4. ${\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{OH}+\mathrm{COOH}$

A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a racemic mixture of $\mathrm{\alpha }$-hydroxy acid. The carbonyl compound is

1. acetaldehyde                             

2. acetone

3. diethyl ketone                           

4. formaldehyde                              

एक कार्बोनिल यौगिक हाइड्रोजन साइनाइड के साथ अभिक्रिया कर साइनोहाइड्रिन निर्मित करता है जो जलअपघटन पर $\mathrm{\alpha }$-हाइड्रॉक्सी अम्ल का एक रेसिमिक मिश्रण निर्मित करता है। कार्बोनिल यौगिक है

1. एसीटैल्डिहाइड     

2. एसीटोन

3. डाइएथिल कीटोन   

4. फार्मेल्डिहाइड