MCQ (Single Correct Answer)
Complete the following reaction:
[C] is _______....
Identify the major product obtained in the following reaction:
...
Identify the final product [D] obtained in the following sequence of reactions.
...
Which of the following reactions is not an example for nucleophilic addition-elimination reaction?
The product formed from the following reaction sequence is
...
Match List-I with List-II :
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The incorrect method to synthesize benzaldehyde is
Given below are two statements :
Statement I : The boiling points of aldehydes and ketones are higher than hydrocarbons of comparable molecular masses...
RMgX + CO2 $$\mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{ether}^{dry}} $$ Y $$\buildrel {{H_3}{O^ + }} \over
\longrightarrow $$ RCOOH
What is ...
Match List-I with List-II.
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Compound X on reaction with O3 followed by Zn/H2O gives formaldehyde and 2-methyl propanal as products. The compound X is
Which one of the following is not formed when acetone reacts with 2-pentanone in the presence of dilute NaOH followed by heating?
Consider the above reaction and identify the missing reagent/chemical....
Match List-I with List-II Choose the correct answer from the options given below....
The product formed in the following chemical reaction is : ...
Identify compound X in the following sequence of reactions : ...
Reaction between benzaldehyde and acetophenone in presence of dilute NaOH is known as :
Reaction between acetone and methylmagnesium chloride followed by hydrolysis will give :
Carboxylic acids have higher boiling points
than aldehydes, ketones and even alcohols of
comparable molecular mass. It is due to their
Consider the reactions,
Identify A, X, Y and Z....
Of the following, which is the product formed when cyclohexanone undergoes aldol condensation followed by heating?
The correct order of strengths of the carboxylic acids
is...
The correct structure of the product 'A' formed in the reaction
...
Which of the following reagents would distinguish cis-cyclopenta-1-2-diol from the trans-isomer?
The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha-carbon, is
The oxidation of benzene by V2O5 in the presence of air produces
Reaction of a carbonyl compound with one of the following reagents involves nucleophilic addition followed by elimination of water. The reagent is
Which one of the following esters gets hydrolysed most easily under alkaline conditions?
An organic compound 'X' having molecular formula C5H10O yields phenylhydrazone and gives negative response to the iodoform test and Tollens' test. It ...
Which one is most reactive towards nucleophilic addition reaction?
The order of stability of the following tautomeric compounds is
...
Reaction by which benzaldehyde cannot be prepared
Consider the reaction :
RCHO + NH2NH2 $$ \to $$ RCH $$=$$ N $$-$$ NH2
What sort of reaction is it?
Consider the following reaction
The product A is ...
CH3CHO and C6H5CH2CHO can be distinguished chemically by
The correct order of decreasing acid strength of trichloroacetic acid (A), trifluoroacetic acid (B), acetic acid (C) and formic acid (D) is
Acetone is treated with excess of ethanol in the presence of hydrochloric acid. The product obtained is
Predict the products in the given reaction.
...
Match the compounds given in List-I with List-II and select the suitable option using the code given below.
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An organic compound A on treatment with NH3 gives B, which on heating gives C. C when treated with Br2 in the presence of KOH produces ethyl amine. Co...
The order of reactivity of phenyl magnesium bromide (PhMgBr) with the following compounds:
...
Clemmensen reduction of a ketone is carried out in the presence of which of the following?
In a set of reactions m-bromobenzoic acid gave a product D. Identify the product D.
...
Which one of the following compounds will be most readily dehydrated?
Acetamide is treated with the following reagents separately. Which one of these would yield methyl amine?
Which of the following reactions will not result in the formation of carbon-carbon bonds?
Among the given compounds, the most susceptible to nucleophilic attack at the carbonyl group is
Trichloroacetaldehyde, CCl3CHO reacts with chlorobenzene in presence of sulphuric acid and produces
Propionic acid with Br2/P yields a dibromo product. Its structure would be
A strong base can abstract an $$\alpha $$-hydrogen from
The relative reactivities of acyl compounds towards nucleophilic substitution are in the order of
Acetophenone when reacted with a base, C2H5ONa, yields a stable compound which has the structure
Reduction of aldehydes and ketones into hydrocarbons using zinc amalgam and conc. HCl is called
The product formed in Aldol condensation is
Consider the following compounds
The correct decreasing order of their reactivity towards hydrolysis is ...
Which of the following represents the correct order of the acidity in the given compounds ?
Which one of the following on treatment with 50% aqueous sodium hydroxide yields the corresponding alcohol and acid?
A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a racemic mixture of $$\alpha $$-hydrixy acid. The carb...
Nucleophilic addition reaction will be most favoured in
Self condensation of two moles of ethyl acetate in presence of sodium ethoxide yields
In a set of reactions propionic acid yielded a compound D.
The structure of D would be...
The major organic product formed from the following reaction :
is...
In a set of reactions acetic acid yielded a product D.
The structure of D would be...
Which one of the following can be oxidised to the corresponding carbonyl compound?
In this reaction :
CH3CHO + HCN $$ \to $$ CH3CH(OH)CN
$$\buildrel {HOH} \over
\lon...
$$A$$ and $$B$$ in the following reactions are :
...
When $$m$$-chlorobenzaldehyde is treated with 50% KOH solution, the product(s) obtained is (are)
In a set of the given reactions, acetic acid yielded a product C.
Product $$C$$ would be...
In the above reaction product P is ...
In the following reaction product $$P$$ is
...
are...
Which of the following give positive Fehling solution test?
Which alkene on ozonolysis gives CH3CH2CHO and CH3COCH3?
First product of the reaction between RCHO and NH2NH2 is
Reduction by LiAlH4 of hydrolysed product of an ester gives
Benzoic acid may be converted into ethyl benzoate
by reaction with :
Polarisation in acrolein can be described as
MCQ (More than One Correct Answer)
Which of the following compounds will give a yellow precipitate with iodine and alkali?