Basics of Organic Chemistry

The ascending acidity order of the following H atoms is

According to IUPAC system, the compound

is named as

Among the following, total number of meta directing functional groups is (Integer based)
\(-\mathrm{OCH}_3,-\mathrm{NO}_2,-\mathrm{CN},-\mathrm{CH}_3-\mathrm{NHCOCH}_3, -\mathrm{COR},-\mathrm{OH},-\mathrm{COOH},-\mathrm{Cl}\)

Among the given organic compounds, the total number of aromatic compounds is

3-Methylhex-2-ene on reaction with \(\mathrm{HBr}\) in presence of peroxide forms an addition product (A). The number of possible stereoisomers for '\(\mathrm{A}\)' is ________.

IUPAC name of following compound (P) is:

Cyclohexene

is ________ type of an organic compound.

Which of the following has highly acidic hydrogen?

Which of the following is strongest Bronsted base?

Total number of compounds with Chiral carbon atoms from following is _________.

Bond line formula of HOCH(CN)\(_2\) is :

The incorrect statement regarding conformations of ethane is :

The order of relative stability of the contributing structure is :

Choose the correct answer from the options given below :

Number of optical isomers possible for 2-chlorobutane ________.

Total number of deactivating groups in aromatic electrophilic substitution reaction among the following is _______ .

Which of the following compound will most easily be attacked by an electrophile?

Ionic reactions with organic compounds proceed through :
(A) homolytic bond cleavage
(B) heterolytic bond cleavage
(C) free radical formation
(D) primary free radical
(E) secondary free radical

Choose the correct answer from the options gi...

Total number of isomeric compounds (including stereoisomers) formed by monochlorination of 2-methylbutane is _______ .

The functional group that shows negative resonance effect is :

Lassaigne's test is used for detection of :

The set of meta directing functional groups from the following sets is :

The descending order of acidity for the following carboxylic acid is-
A. \(\mathrm{CH}_{3} \mathrm{COOH}\)
B. \(\mathrm{F}_{3} \mathrm{C}-\mathrm{COOH}\)
C. \(\mathrm{ClCH}_{2}-\mathrm{COOH}\)
D. \(\mathrm{FCH}_{2}-\mathrm{COOH}\)
E. $$\mat...

The correct IUPAC nomenclature for the following compound is:

From the figure of column chromatography given below, identify incorrect statements.

A. Compound 'c' is more polar than 'a' and 'b'
B. Compound '\(\mathrm{a}\)' is least polar
C. Compound 'b' comes out of the column before 'c' and after 'a...

Match items of column I and II

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Match List I with List II:

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Following chromatogram was developed by adsorption of compound 'A' on a 6 cm TLC glass plate. Retardation factor of the compound 'A' is _________ \(\times 10^{-1}\).

The correct order in aqueous medium of basic strength in case of methyl substituted amines is :

Which of the following conformations will be the most stable?

Which will undergo deprotonation most readily in the basic medium?

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A : Benzene is more stable than hypothetical cyclohexatriene
Reason R : The delocalised \(\pi\) electron cloud is attracted more ...

The total number of chiral compound/s from the following is ______________.

Resonance in carbonate ion \(\left(\mathrm{CO}_{3}{ }^{2-}\right)\) is

Which of the following is true?

Which of the following statement is correct for paper chromatography?

Among the following compounds, the one which shows highest dipole moment is

Given below are two statements :
Statement I : Tropolone is an aromatic compound and has \(8 \pi\) electrons.
Statement II : \(\pi\) electrons of \(> \mathrm{C}=\mathrm{O}\) group in tropolone is involved in aromaticity.
In the light of th...

Three organic compounds A, B and \(\mathrm{C}\) were allowed to run in thin layer chromatography using hexane and gave the following result (see figure). The \(\mathrm{R}_{\mathrm{f}}\) value of the most polar compound is ____________ $$\ti...

Thin layer chromatography of a mixture shows the following observation:

The correct order of elution in the silica gel column chromatography is

Using column chromatography, mixture of two compounds 'A' and 'B' was separated. 'A' eluted first, this indicates 'B' has

The decreasing order of hydride affinity for following carbocations is:

Choose the correct answer from the options given below:

Observe structures of the following compounds

The total number of structures/compounds which possess asymmetric carbon atoms is ______________.

Which of the following carbocations is most stable?

Given below are two statements.
Statement I : The compound is optically active.
Statement II : is mirror image of above compound A.
In the light of the above statement, choose the most appropriate answer from the options given below.

Which of the following structure are aromatic in nature?

Which one of the following techniques is not used to spot components of a mixture separated on thin layer chromatographic plate?

The correct IUPAC name of the following compound is :

Among the following marked proton of which compound shows lowest \(\mathrm{pK}_{\mathrm{a}}\) value?

Match List - I with List - II.

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Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R
Assertion A : Thin layer chromatography is an adsorption chromatography.
Reason R : A thin layer of silica gel is spread over a glass plate...

Arrange the following in increasing order of reactivity towards nitration
A. p-xylene
B. bromobenzene
C. mesitylene
D. nitrobenzene
E. benzene
Choose the correct answer from the options given below