Chemical Properties of Amines

Q.

Why does pyridine not give Friedel Crafts reaction?

Q. Find out C in the following sequence of reaction cyclohexene +O3 + H20 = A, A +Ca(OH)2 = B, B +C6H5CO3H =

Q. 18. In a mixture of NaHcO3 and Na2CO3 volume of HCl required is x ml with phenolphthalein and y ml with methyl orange in same titration . Hence, volume of HCl for for complete reaction of Na2CO3 is ??

Q. When amines are treated with carboxylic acids at room temperature, aminoacids will be obtained.

1. True
2. False

Q. Reaction of carbonyl compound with one of the following reagents involves nucleophilic addition followed by elimination of water. The reagent is:

1. hydrocyanic acid
2. sodium hydrogen sulphite
3. a Grignard reagent
4. hydrazine in presence of feebly acidic solution

Q. 13. which one is formed in 2^{nd} excited state 1) PCl_5 2) SF_6 3) SO_3 4) IF_7

Q. Aniline does not undergo Friedel-Crafts reaction. Choose the correct option(s) regarding this statement.

1. Aniline forms salt with the Lewis acid catalyst i.e., AlCl₃, which is used in Friedel-Crafts reaction.
2. Nitrogen of aniline acquires positive charge and hence acts as a strong deactivating group for further reaction.
3. N-alkyl and N, N-dialkyl anilines undergo Friedel-Craft's reactions.
4. Positive charge on nitrogen is electron-donating and it activates the ring for further reactions.

Q. 47. Differene btw HCB and BHC

Q. 3. Show me the structure of 2, 3di bromo 1 phenyl pentane And 1(23 di bromo) pentyl benzne

Q. What will be the product of the benzoylation of aniline?

1. Benzylamine
2. Diphenylamine
3. Phenyl benzoate
4. Benzanilide

Q.

The product of the reaction

1. 

2. 

3. Both a And b

4. 

Q.

What is an example of an amide?

Q. Diethylamine reacts with nitrous acid to give

1. $(C_2{H}_5{)}_{2}N{H}^{+}N{O}_2^{-}$
2. $(C_2{H}_5{)}_{2}NNO$
3. $C_2{H}_{5}OH$
4. $N_2$ and alcohol

Q.

Some statements are given about acylation of amines with acid chloride

I. Tertiary amines do not react with acid chloride

II. This reaction is an example of a nuclophilic addition reaction

III. This reaction is carried out in the presence of pyridine

IV. Aliphatic and aromatic primary and secondary amines involve in this reaction

The correct statements is/ are

1. I, II, III only
2. I, III, IV only
3. II only
4. IV only

Q. Aniline does not undergo Friedel-Crafts reaction. Choose the correct option(s) regarding this statement.

1. Aniline forms salt with the Lewis acid catalyst i.e., AlCl₃, which is used in Friedel-Crafts reaction.
2. Nitrogen of aniline acquires positive charge and hence acts as a strong deactivating group for further reaction.
3. N-alkyl and N, N-dialkyl anilines undergo Friedel-Craft's reactions.
4. Positive charge on nitrogen is electron-donating and it activates the ring for further reactions.

Q. When nitrobenzene is made to react with Zinc dust and $N{H}_{4}Cl$, the product is

1. 3-nitroaniline
2. phenylhydroxylamine
3. aniline
4. None of the above

Q.
The major product of the above reaction is:

1. 
2. 
3. 
4. 

Q. 22. Sie420 represent 4pz 4dz2 4s 5px

Q. p-Chloroaniline and anilinium chloride can be distinguished by:

1. Sandmeyer reaction
2. $NaHC{O}_3$
3. $AgN{O}_3$
4. Carbylamine test

Q. The compound that produces an oily nitrosoamine on reaction with aq. HONO at low temperature is:

1. Triethylamine

2. Diethylamine

3. Ethylamine

4. Methylamine

Q. Choose the correct order of reagents to be added for the following conversion:
$C_6{H}_5{\mathrm{CH}}_2\mathrm{Cl}\stackrel{\left(i\right)}{\to }{C}_6{H}_5{\mathrm{CH}}_2\mathrm{CN}\stackrel{\left(\mathrm{ii}\right)}{\to }{C}_6{H}_5{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{NH}}_2\underset{\Delta }{\overset{\left(\mathrm{iii}\right)}{\to }}{C}_6{H}_5{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{NC}$

1. $\left(i\right){\mathrm{CHCl}}_3/\mathrm{alc}.\mathrm{KOH},\left(\mathrm{ii}\right)H_2/\mathrm{Pd},\left(\mathrm{iii}\right)\mathrm{KCN}/\mathrm{EtOH}$
2. $\left(i\right)\mathrm{KCN}/\mathrm{EtOH},\left(\mathrm{ii}\right)H_2/\mathrm{Pd},\left(\mathrm{iii}\right){\mathrm{CHCl}}_3/\mathrm{alc}.\mathrm{KOH}$
3. $\left(i\right)H_2/\mathrm{Pd},\left(\mathrm{ii}\right),\mathrm{KCN}/\mathrm{HCl}\left(\mathrm{iii}\right){\mathrm{CHCl}}_3/\mathrm{alc}.\mathrm{KOH}$
4. $\left(i\right)\mathrm{KCN}/\mathrm{HCl},\left(\mathrm{ii}\right){\mathrm{CHCl}}_3/\mathrm{alc}.\mathrm{KOH},\left(\mathrm{iii}\right)H_2/\mathrm{Pd}$

Q.
(Z) would be :

1. 
2. 
3. 
4. 

Q. Estimation of α-amino acids can be done by reacting them with nitrous acid.

1. True
2. False

Q.

Consider the following reaction and match the correct option containing the missed reagents and products:

1. 
2. 
3. 
4. 

Q.

1. Pd–CaCO₃ with Pb(OAc)₂

2. 

3. H₂SO₄

4. None of these

Q. Difference between Kp and Kc?

Q. Why 3 degree compound do not show acylation and shows alkylation

Q. Choose the incorrect statement(s) from the following:

1. N, N-Diethylbenzenesulphonamide is soluble in alkali.
2. Hinsberg's reagent reacts with primary, secondary and tertiary amines.
3. Diethylamine on treatment with carbon disulphide followed by excess of mercuric chloride will produce an isothiocyanate having pungent smell.
4. Secondary amine on reaction with CS₂ will give dithiocarbamic acid which fail to react with mercuric chloride.

Q. What is the change in the number of carbon atom(s) of the newly formed ring in the given reaction?