Bottom of Pyramid - Test # 16

An organic compound (A) on reduction gives compound (B) which on reaction with chloroform and potassium hydroxide forms (C). The compound (C) on catalytic reduction gives N-methyl aniline. What is the structure of compound (A)?
1. Nitrobenzene
2. Nitromethane
3. Methylamine
4. Aniline

Acetamide and ethyl amine can be distinguished by reacting with:
1. Aq. HCl and heat
2. Aq. NaOH and heat
3. Acidified KMnO₄
4. Bromine water

Which of the following compound gives dye test
1. Aniline
2. Methylamine
3. Diphenylamine
4. Ethylamine

Which one of the following on reduction with LiAlH₄ yields a secondary amine? [2007]
1. Methyl isocyanide
2. Acetamide
3. Methyl cyanide
4. Nitroethane

Aniline when diazotised in cold and then treated with dimethylaniline, gives a coloured product. Its structure would be :
1.
2.
3.
4.

What is the end product in the following sequences of operations?
Acetamide $\overset{P_{2} O_{5}}{\to} A \overset{4 H}{\to} B$
1. CH₃NH₂
2. C₂H₅NH₂
3. CH₃CN
4. CH₃COONH₄

Name the end product in the following series of reactions,
CH₃COOH $\overset{{NH}_{3}}{\to}$ A $\overset{∆}{\to}$ B $\overset{P_{2} O_{5}}{\to}$ C:
1. CH₄
2. CH₃OH
3. acetonitrile
4. ammonium acetate

The type of isomerism shown by C₆H₅CN and C₆H₅NC is:
1. Position
2. Functional
3. enantiomer
4. Tautomerism

An organic compound A on reduction gives compound B which on reaction with chloroform and potassium hydroxide forms C. The compound C on catalytic reduction gives N-methylaniline. The compound A is [2000]
1. nitrobenzene
2. nitromethane
3. methylamine
4. aniline

10.

An aromatic primary amine with cold nitrous acid leads to the formation of:
1. alcohol
2. nitrite
3. diazonium salt
4. benzene

11.

Product P in the above reaction is -
1.
2.
3.
4.

12.

In the reaction,
${CH}_{3} CN + 2 H \to_{{SnCl}_{2}}^{HCl} X \overset{Boiling H_{2} O}{\to} Y,$ the term Y is
[1999]
1. Acetone
2. Ethanamine
3. Acetaldehyde
4. Dimethyl amine

13.

X and Y in the given reaction are:

1. ${CH}_{3} COOH + ({CH}_{3})_{2} NH$
2. ${CH}_{3} {CONH}_{2} + {CH}_{3} OH$
3. ${CH}_{3} CHO + ({CH}_{3})_{2} NH$
4. ${CH}_{3} {COCH}_{3} + {CH}_{3} {NH}_{2}$

14.

Which of the following statements about primary amines is false ?
[2010]
1. Alkyl amines are stronger bases than aryl amines
2. Alkyl amines react with nitrous acid to produce alcohols
3. Aryl amines react with nitrous acid to produce phenols
4. Alkyl amines are stronger bases than ammonia

15.

Among the following, the strongest base is:
1. C₆H₅NH₂
2. p-NO₂-C₆H₄NH₂
3. m-NO₂-C₂H₄NH₂
4. C₂H5CH₂NH₂

16.

An amine reacts with $C_{6} H_{5} {SO}_{2} Cl$ and the product is soluble in alkali, amine is:
1. $1 °$
2. $2 °$
3. $3 °$
4. all of those

17.

Which of the following reactions does not yield an amine?
1.
2.
3.
4.

18.

The end product in the following sequence of reactions is -
$C_{2} H_{5} {NH}_{2} \overset{{HNO}_{2}}{\to} A \overset{{PCl}_{5}}{\to} B \overset{{NH}_{3}}{\to} C ?$

1. Ethyl cyanide
2. Ethylamine
3. Methylamine
4. Acetamide

19.

Identfy X in the sequence,
$X \overset{{HNO}_{2}}{\to} C_{3} H_{8} O \to_{H_{2} {SO}_{4}}^{K_{2} {Cr}_{2} O_{7}} C_{3} H_{6} O_{2}$ :
1. ${CH}_{3} - NH - {CH}_{2} - {CH}_{3}$
2. ${CH}_{3} - {CH}_{2} - {CH}_{2} - {NH}_{2}$
3. $({CH}_{3})_{3} N$
4. none of the above

20.

CH₃CH₂NH₂ contains a basic NH₂ group, but CH₃CONH₂ does not, because;
1. acetamide is amphoteric in character
2. in CH₃CH₂NH₂ the electron pair on N-atom is delocalized by resonance
3. in CH₃CH₂NH₂ there is no resonance, while in acetamide the lone pair of electron on N-atom is delocalized and therefore less available for protonation
4. none of the above

21.

Tertiary nitro compounds cannot show tautomerism because:
1. they are very stable
2. isomerises to give sec. nitro compounds
3. do not have labile H-atom
4. they are highly eactive

22.

Aniline and Ethylamine resemble in:
1. Solubility
2. Action with HNO₂
3. Action of Grignard reagent
4. Coupling reaction

23.

A secondary amine is:
1. a compound with two -NH₂ groups
2. a compound with 2 carbon atoms and a -NH₂ group
3. a compound with a -NH₂ group on the carbon atom in number 2 position
4. a compound in which 2 of the hydrogens of NH₃ have been replaced by alkyl or aryl groups

24.

The above reaction is an example of....
1. Intermolecular C-N coupling
2. Intramolecular C-N coupling
3. Intermolecular N-N coupling
4. Intramolecular N-N coupling

25.

The hydrochlorides of amines form double salt with:
(1) PtCl₄
(2) AuCl₃
(3) both (a) and (b)
(4) none of these

26.

An amine gives a solid compound that is insoluble in alkali with benzene sulphonyl chloride.
The amine is -
1. ${CH}_{3} - {CH}_{2} - {NH}_{2}$
2. ${CH}_{3} - NH - {CH}_{2} - {CH}_{3}$
3. $({CH}_{3})_{3} N$
4. $C_{6} H_{5} - {NH}_{2}$

27.

The compound A and B respectively are:

1.		2.
3.		4.

28.

Reaction of $R - \overset{O}{\overset{| |}{C}} - {NH}_{2}$ with a mixture of Br₂ and KOH gives R-NH₂ as the main product. The intermediates involved in this reaction are:
1. $R - \overset{O}{\overset{| |}{C}} - NHBr and R - N = C = O$
2. RCN
3. $R - \overset{O}{\overset{| |}{C}} - {NBr}_{2}$
4. RNHBr

29.

In which of the following reactions cyanide will be obtained as a major product?
1. $O$
$| |$
$P h ‐ C ‐ C H_{3} \to_{(i i) H_{3} O^{+}}^{(i) L i A l H_{4}}$
$O$
$| |$
$2 . P h ‐ C ‐ N H_{2} \to_{B r_{2}}^{N a O H}$
$O$
$| |$
$3 . P h ‐ C ‐ N H_{2} \to_{B r_{2}}^{P_{4} O_{10}}$
$O$
$| |$
$4 . P h ‐ C ‐ O ‐ H \overset{S O C l_{2}}{\to} \overset{N H_{3}}{\to}$

30.

$\overset{{HNO}_{2}}{\to}$ (A) + + CH₂ = CH-CH₂-CH₂-OH
A will be:
(a) $\begin{matrix} {Ch}_{2} = CH & - & \underset{OH}{\underset{|}{CH}} & - & {CH}_{3} \end{matrix}$
(b)
(c)
(d)

31.

The product formed in the below mentioned reaction is:

1.		2.
3.		4.

32.

Which of the following reactions can be used to prepare acetophenone ?
(a) $C_{6} H_{6} + {CH}_{3} COCl \to_{}^{1 . {AlCl}_{3}}$
(b) ${(C_{6} H_{5} COO)}_{2} Ca + {({CH}_{3} COO)}_{2} Ca \overset{heat}{\to}$
(c) $C_{6} H_{5} CN \to_{2 H_{3} O^{+}}^{1 . {CH}_{3} MgI}$
(d) All of these

33.

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

34.

Identify the product (A) in the following reaction series,
CH₃CN $\overset{Na / C_{2} H_{5} OH}{\to}$ (X) $\overset{{HNO}_{2}}{\to}$ (Y) $\overset{[O]}{\to}$ (Z) $\overset{Tollens reagent}{\to}$ (A):
1. CH₃CHO
2. CH₃CONH₂
3. CH₃COOH
4. CH₃-CH₂-NHOH

35.

The amine may contain:
(1) $— N H_{2} g p .$
(2) $- \underset{|}{N} H gp$
(3) $- N_{|}^{|}$ gp
(4) all of these

36.

Which nitro compound will show tautomerism ?
(1) $C_{6} H_{5} {NO}_{2}$
(2) $({CH}_{3})_{3} {CNO}_{2}$
(3) ${CH}_{3} {CH}_{2} {NO}_{2}$
(4) o-nitrotoluene

37.

The reduction of CH₃CN to CH₃CH₂NH₂ is called:
1. Rosenmund's reduction
2. Clemmensen's reduction
3. Mendius reduction
4. Hofmann's reduction

38.

The product [A] formed in the reaction;
$2 C_{5} H_{5} - CN \to_{{Et}_{2} O}^{Na} [A] is :$
1.
2.
3.
4.

39.

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

40.

In the compound given below,

the correct order of acidic nature of the positions (X), (Y) and (Z) is:
(1) Z>X>Y
(2) X>Y>Z
(3) X>Z>Y
(4) Y>X>Z

41.

The product obtained on nitration followed by alkaline hydrolysis of acetylated aniline is:
1. o-Nitroacetanilide
2. o- and p-Nitroaniline
3. m-Nitroaniline
4. Acetanilide

42.

In the chemical reactions,

the compounds 'A' and 'B', respectively, are:
1. Nitrobenzene and chlorobenzene
2. Nitrobenzene and fluorobenzene
3. Phenol and benzene
4. Benzene diazonium chloride and fluorobenzene

43.

Which one of the following nitro-compounds does not react with nitrous acid?

44.

The correct statement regarding the basicity of arylamines is
(1) Arylamines are generally more basic than alkylamines because the nitrogen lone-pair electrons are not delocalized by interaction with the aromatic ring p-electron system.
(2) Arylamines are generally more basic than alkylamines because of aryl group.
(3) Arylamines are generally more basic than alkylamines, because the nitrogen atom in arylamines is sp-hybridized
(4) Arylamines are generally less basic than alkylamines because the nitrogen lone-pair electrons are delocalized by interaction with the aromatic ring p-electron system.

45.

Which of the following is more basic than aniline?
1. Diphenylamine
2. Triphenylamine
3. p-Nitroaniline
4. Benzylamine

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