MCQ (Single Correct Answer)
In the following reaction, 'A' is
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Cyclohexylamine when treated with nitrous acid yields $(\mathrm{P})$. On treating $(\mathrm{P})$ with $\mathrm{PCC}$ results in (Q). When $(\mathrm{Q}...
An organic compound $[\mathrm{A}]\left(\mathrm{C}_{4} \mathrm{H}_{11} \mathrm{~N}\right)$, shows optical activity and gives $\mathrm{N}_{2}$ gas on tr...
In the following halogenated organic compounds, the one with the maximum number of chlorine atoms in its structure is :
Consider the above reaction and identify the product B....
In the above conversion of compound $(\mathrm{X})$ to product $(\mathrm{Y})$, the sequence of reagents to be used will be:
...
Benzyl isocyanide can be obtained by :
A.
B.
C.
D.
Choose the correct answer from the options given below :...
Reaction of propanamide with $$\mathrm{Br_2/KOH(aq)}$$ produces :
The major product 'P' for the following sequence of reactions is :
...
Match List I with List II
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Identify the product formed (A and E)
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Choose the correct colour of the product for the following reaction.
...
Given below are two statements:
Statement I : Pure Aniline and other arylamines are usually colourless.
Statement II : Arylamines get coloured on stor...
Which among the following represent reagent 'A'?...
Consider the following reaction sequence:
The product 'B' is :...
Given below are two statements: one is labelled as Assertion $$\mathbf{A}$$ and the other is labelled as Reason $$\mathbf{R}$$
Assertion A : Aniline o...
An organic compound $$'\mathrm{A}'$$ contains nitrogen and chlorine. It dissolves readily in water to give a solution that turns litmus red. Titration...
Match List I with List II.
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The correct sequential order of the reagents for the given reaction is
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The major product of the following reaction is
...
The correct stability order of the following diazonium salt is
...
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Experimental reaction of $$...
$$C{H_3} - C{H_2} - CN\mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{Ether}^{C{H_3}MgBr}} A\buildrel {{H_3}{O^ + }} \over
\longrightarrow B\mathr...
Most stable product of the following reaction is:
...
Two isomers (A) and (B) with Molar mass 184 g/mol and elemental composition C, 52.2%; H, 4.9% and Br 42.9% gave benzoic acid and p-bromobenzoic acid, ...
Consider the above reactions, the product A and product B respectively are...
With respect to the following reaction, consider the given statements :
(A) o-Nitroaniline and p-nitroaniline are the predominant products.
(B) p-Ni...
Identify the major product formed in the following sequence of reactions:
...
A primary aliphatic amine on reaction with nitrous acid in cold (273 K) and there after raising temperature of reaction mixture to room temperature (2...
The major product of the following reaction is :
...
Given below are two statements :
Statement I : In Hofmann degradation reaction, the migration of only an alkyl group takes place from carbonyl carbon ...
Which statement is NOT correct for p-toluenesulphonyl chloride?
The final product 'C' in the following series of reactions
...
Amongst the following, the major product of the given chemical reaction is
...
The reaction of with bromine and KOH gives RNH2 as the end product. Which one of the following is the intermediate product formed in this reation?...
The conversion of propan-1-ol to n-butylamine involves the sequential addition of reagents. The correct sequential order of reagents is
In the given reaction sequence, the major product 'C' is :
...
The major product of the above reactions is :...
Identify A in the following reaction.
...
Which one of the following gives the most stable Diazonium salt?
The major products A and B formed in the following reaction sequence are :...
The major products A and B in the following set of reactions are :...
Which one of the following is the major product of the given reaction?...
The correct structures of A and B formed in the following reactions are :...
Which of the following is not a correct statement for primary aliphatic amines?
In the following sequence of reactions the P is :...
Match List - I with List - II :Choose the most appropriate match :...
The major product in the above reaction is :...
Consider the given reaction, identify 'X' and 'Y' :...
The correct sequential addition of reagents in the preparation of 3-nitrobenzoic acid from benzene is :
What is A in the following reaction?...
Given below are two statements : Statement I : Aniline is less basic than acetamide.Statement II : In aniline, the lone pair of electrons on nitrogen ...
Consider the above reaction, the product "P" is :...
A reaction of benzonitrile with one equivalent CH3MgBr followed by hydrolysis produces a yellow liquid "P". The compound "P" will give positive ______...
What is the major product "P" of the following reaction?...
Which one of the products of the following reactions does not react with Hinsberg reagent to form sulphonamide?
Which one of the following compounds will liberate CO2, when treated with NaHCO3 ?
Which one of the following reactions does not occur?
In the above reactions, product A and product B respectively are :...
Consider the above reaction, compound B is :...
In Carius method, halogen containing organic compound is heated with fuming nitric acid in the presence of :
The correct structure of Rhumann's Purple, the compound formed in the reaction of ninhydrin with proteins is :
Compound A is converted to B on reaction with CHCl3 and KOH. The compound B is toxic and can be decomposed by C. A, B and C respectively are :...
Consider the given reaction, percentage yield of :...
In the reaction of hypobromite with amide, the carbonyl carbon is lost as :
An organic compound "A" on treatment with benzene sulphonyl chloride gives compound B. B is soluble in dil. NaOH solution. Compound A is :
Considering the above reaction, X and Y respectively are :...
Primary, secondary and tertiary amines can be separated using:
Hoffmann bromomide degradation of benzamide gives product A, which upon heating with CHCl3 and NaOH gives product B.The structures of A and B are :...
Which of the following is correct structure of tyrosine?
Ammonolysis of Alkyl halides followed by the treatment with NaOH solution can be used to prepare primary, secondary and tertiary amines. The purpose o...
In the above chemical reaction, intermediate ''X'' and reagent/condition ''A'' are :...
Which of the following reactions DOES NOT involve Hoffmann bromamide degradation?
A. Phenyl methanamineB. N,N-DimethylanilineC. N-Methyl anilineD. BenzenamineChoose the correct order of basic nature of the above amines....
For the given reactionWhat is 'A'?...
Given below are two statements :Statement I : A mixture of chloroform and aniline can be separated by simple distillation.Statement II : When separati...
An amine on reaction with benzensulphonyl chloride produces a compound insoluble in alkaline solution. This amine can be prepared by ammonolysis of et...
Correct statement about the given chemical reaction is :...
Carbylamine test is used to detect the presence of primary amino group in an organic compound. Which of the following compound is formed when this tes...
Compound(s) which will liberate carbon dioxide with sodium bicarbonate solution is/are :...
Which of the following reaction/s will not give p-aminoazobenzene?...
What is the correct sequence of reagents used for converting nitrobenzene into m-dibromobenzene?
...
The diazonium salt of which of the following compounds will form a coloured dye on reaction with $$\beta$$-Naphthol in NaOH?
In the following reaction the reason why meta-nitro product also formed is :
...
'A' and 'B' in the following reactions are :
...
Which of the following compounds can be
prepared in good yield by Gabriel phthalimide
synthesis?
The final major product of the following reaction is :
...
The most appropriate reagent for conversion of
C2H5CN into CH3CH2CH2NH2 is
In the following reaction sequence, [C] is :
...
Which of the following will react with CHCl3 +
alc. KOH?
Three isomers A, B and C (mol. formula C8H11N) give the following results :
R has lower boiling point than S
A, B and C, respectively are :...
The Kjeldahl method of Nitrogen estimation fails for which of the following reaction products?
...
In Carius method of estimation of halogen,
0.172 g of an organic compound showed
presence of 0.08 g of bromine. Which of these
is the correct structur...
Consider the following reactions,
The compound [P] is :...
The major product Z obtained in the following
reaction scheme is :
...
Kjeldahl's method cannot be used to estimate
nitrogen for which of the following
compounds?
In the following reaction sequence,
The major product B is :...
Consider the following reaction :
The product 'X' is used :
...
Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives :
Which of the following is not a correct method of the preparation of benzylamine from cyanobenzene ?
Ethylamine (C2H5NH2) can be obtained from N-ethylphatalimide on treatment with :
The major products A and B for the following
reactions are, respectively:
...
Hinsberg's reagent is :
The major product of the following reaction is:
...
The major product obtained in the following
reaction is :
...
Which of the following amines can be prepared by Gabriel phthalimide reaction ?
The major product of the following reaction is –
...
The major product of the following reaction is –
...
A compound 'X' on treatment with Br2/NaOH, provided C3H9N, which gives positive carbylamine test. Compound 'X' is :
An aromatic compound 'A' having molecular formula C7H6O2 on treating with aqueous ammonia and heating forms compound 'B'. The compound 'B' on reaction...
The major product of the following reaction is
...
The major product formed in the reaction given below will be :
...
The major product obtained in the following reaction is :
...
The compounds A and B in the following reaction are, respectively :
...
The major product of following reaction is :
...
Products A and B formed in the following reactions are respectively :
...
The increasing order of basicity of the following compounds is :
...
The major product formed in the following reaction is :
...
The increasing order of diazotisation of the following compounds is :
...
Among the following compounds, the increasing order of their basic strength is :
...
Which of the following compounds will form significant amount of meta product during mono-nitration
reaction?
Fluorination of an aromatic ring is easily accomplished by treating a diazonium salt with HBF4. Which of the following conditions is correct about thi...
The “N” which does not contribute to the basicity for the compound is :
...
The test to distinguish primary, secondary and tertiary amines is :
In the Hofmann bromamide degradation reaction, the number of moles of NaOH and Br2 used per mole of
amine produced are:
In the reaction
The product $$E$$ is :...
On heating an aliphatic primary amine with chloroform and ethanolic potassium hydroxide, the organic
compound formed is:
Considering the basic strength of amines in aqueous solution, which one has the smallest pKb value?
A compound with molecular mass 180 is acylated with CH3COCl to get a compound with molecular mass
390. The number of amino groups present per molecule...
The gas leaked from a storage tank of the Union Carbide plant in Bhopal gas tragedy was:
An organic compound A upon reacting with $$N{H_3}$$ gives $$B.$$ On heating $$B$$ gives $$C.$$ $$C$$ in presence of $$KOH$$ reacts with $$B{r_2}$$ to ...
In the chemical reactions,
the compounds $$'A'$$ and $$'B'$$ respectively are...
Which one of the following is the strongest base in aqueous solution?
In the chemical reaction,
CH3CH2NH2 + CHCl3 + 3KOH $$\to$$ (A) + (B) + 3H2O, the compound (A) and (B) are respectively ...
Amongst the following the most basic compound is
Which one of the following methods is neither meant for the synthesis nor for
separation of amines?
An organic compound having molecular mass 60 is found to contain C = 20%, H =
6.67% and N = 46.67% while rest is oxygen. On heating it gives NH3 along...
The correct order of increasing basic nature for the bases NH3, CH3NH2 and (CH3)2 NH is
Ethyl isocyanide on hydrolysis in acidic medium generates
The reaction of chloroform with alcoholic $$KOH$$ and p-toluidine forms
When primary amine reacts with chloroform in ethanoic KOH then the product is
Numerical
How many of the transformations given below would result in aromatic amines?
...
The total number of reagents from those given blow, that can convert nitrobenzene into aniline is ___________. (Integer answer)I. Sn $$-$$ HClII. Sn $...
In gaseous triethyl amine the "$$-$$C$$-$$N$$-$$C$$-$$" bond angle is _________ degree.
The number of nitrogen atoms in a semicarbazone molecule of acetone is ______________.
The total number of amines among the following which can be synthesized by Gabriel synthesis is __________....
The number of chiral centres present in [B] is
_____.
...
The mass percentage of nitrogen in histamine is _____.