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$\stackrel{{\left({\mathrm{NH}}_4\right)}_2\mathrm{S}}{\to }A\underset{0-5°C}{\overset{NaN{O}_2/HCl}{\to }}B\underset{∆}{\overset{C_2{H}_{5}OH}{\to }}C$
Product (C) is 
1. Nitrobenzene
2. 1,3-Diethoxybenzene
3. Ethoxybenzene
4. Benzene

The major product of the following reaction would be

1.
2.
3.
4.

Which of the following is regenerated at the end of the reaction

(1) X
(2) Y
(3) Z
(4) W

'x' and 'y' are respectively :

(1)
(2)
(3)
(4)

What will be the product of the following reaction

(1)
(2)
(3)
(4)

Product (A) is:
1.   
2.
3.   
4.

 $\underset{{\mathrm{H}}_2{\mathrm{SO}}_4}{\overset{{\mathrm{NaNO}}_2}{\to }} \left(\mathrm{A}\right); \mathrm{Product} \mathrm{of} \mathrm{this} \mathrm{reaction} \mathrm{is}:$
1.
2. 
3.
4.

 $\stackrel{{\mathrm{HNO}}_2}{\to }$(A) + + CH₂ = CH-CH₂-CH₂-OH   
A will be:
(a) $\begin{array}{ccccc}{\mathrm{Ch}}_2 = \mathrm{CH}& -& \underset{\mathrm{OH}}{\underset{|}{\mathrm{CH}}}& -& {\mathrm{CH}}_3\end{array}$
(b) 
(c) 
(d) 

The product formed in the below mentioned reaction is:

1.		2.
3.		4.

Above compounds (P) & (Q) can be differentiated by:
(1) amm. AgNO₃
(2) NaOH
(3) FeCl₃
(4) Both (a) & (b)

Gas evolved during the reacton of sodium metal on ethyl-amine is:
(1) N₂
(2) C₂H₂
(3) H₂
(4) CO₂

The product [A] formed in the reaction;
$2{\mathrm{C}}_5{\mathrm{H}}_5-\mathrm{CN}\underset{{\mathrm{Et}}_2\mathrm{O}}{\overset{\mathrm{Na}}{\to }}\left[A\right] \mathrm{is}:$
1. 
2. 
3. 
4. 
 

ln the reaction, 
The product is: 
1. 
2. 
3. 
4. 
 

A primary amine heated with CS₂ in presence of excess of HgCl₂ gives isothiocyanate. The reaction is called:
(1) Hofmann's bromamide reaction
(2) Hofmann's mustard oil reaction
(3) Perkin's condensation
(4) Hofmann's elimination

Reaction of cyclohexanone with dimethylamine in the presence of catalytic amount of an acid forms a compound if water during the reaction is continuously removed. The compound formed is generally known as:
(1) Schiff's base
(2) an enamine
(3) an imine
(4) an amine

Biuret test is not given by: 
(1) proteins
(2) carbohydrates
(3) polypeptides
(4) urea

The product formed by the reaction of C₆H₅CN and CH₂N₂ is:
1. 
2. 
3. 
4. None of these

The presence of ${\mathrm{NH}}_4^{+}$ radical in solution can be detected by:
1. Fehling’s solution
2. Benedict’s solution
3. Schiff's reagent
4. Nessler’s reagent
 

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

 

The electrolytic reduction of nitrobenzene in a strongly acidic medium produces
1. p-Aminophenol
2. Azoxybenzene
3. Azobenzene
4. Aniline

Method by which aniline cannot be prepared is
1. hydrolysis phenyl isocyanide with an acidic solution
2. degradation of benzamide with bromine in alkaline solution
3. reduction of nitrobenzene with H₂/Pd in ethanol
4. potassium salt of phthalimide treated with chlorobenzene followed by the hydrolysis
with aqueous NaOH solution