NEET Chemistry Organic Chemistry – Some Basic Principles & Techniques Class 11 Questions
270 questions
The structure of product X in the following reaction is
Which of the following names is not correctly matched with the compound?
The major product formed in the following reaction is :
In the following structures, which one is having staggered conformation with maximum dihedral angle?
Which of the following is most stable?
Which of the following conformations of n-butane is the least stable?
The correct IUPAC nomenclature for the following compound is
The most basic amine among the following is
Arrange the following compounds in order of their reactivity towards Sn₂ reaction.
Consider the following reaction, Phenol → Z. The product Z is
The IUPAC name for
What is the correct order of decreasing stability of the following cations?
Assertion: Aromatic aldehydes and formaldehyde undergo Cannizzaro reaction.
Reason: Aromatic aldehydes are almost as reactive as formaldehyde.
Mark the correct order of decreasing acid strength of the following compounds.
Which one of the following compounds is not aromatic?
Among the following compounds, the correct order of electrophilic substitution reaction is
Propene on hydroboration and oxidation produces
The correct increasing order of basic strength for the following compounds is
Arrange the following in decreasing order of their boiling points.
A. n-butane
B.²⁻methylbutane
C. n-pentane
D. 2,²⁻dimethylpropane
Arrange the following carbanions in order of their decreasing stability.
(i) H₃C−C≡C⁻
(ii) H−C≡C⁻
(iii) H₃C−CH₂⁻
What is the primary technique used for the purification of solid organic compounds that involves the transition from solid to vapor without passing through a liquid phase?
What type of compounds are classified as acyclic or open chain compounds?
What is a functional group in organic chemistry?
What is the term used for hydrocarbons that contain only carbon-carbon single bonds?
Which method is used to estimate nitrogen content in organic compounds?
What is the primary function of column chromatography in organic chemistry?
What is the IUPAC name suffix for alkanes?
What type of hybridization is observed in compounds like methane?
Which combinations correctly describe the characteristics and structures of organic compounds?
Which of the following statements about isomerism is correct?
Which of the following combinations correctly describes the techniques of sublimation and crystallisation?
Which of the following statements about organic reactions and their classifications is correct?
Which of the following statements about the effects in organic compounds is correct?
Which of the following statements about the techniques in organic chemistry is correct?
Which of the following statements about functional groups and structural representations in organic chemistry is correct?
Which of the following combinations about the properties of carbon compounds is correct?
Which of the following combinations correctly describe the principles and applications of chromatography?
Which of the following combinations correctly describes the features of organic compounds and their behaviors during experiments?
Which of the following statements regarding resonance structures and electron movement in organic reactions is correct?
Assertion (A): A nucleophile is an electron-rich species.
Reason (R): A nucleophile attacks a positive reactive site in a molecule.
Assertion (A): The best technique for the isolation, purification, and separation of organic compounds is crystallization.
Reason (R): Crystallization allows for the efficient separation of components based on differences in solubility.
Assertion (A): Electrophiles seek electrons during a chemical reaction.
Reason (R): A reagent that takes away an electron pair from a reactive site is called a nucleophile.
Assertion (A): The formation of Prussian blue confirms the presence of nitrogen in an organic compound.
Reason (R): Prussian blue is formed when sodium cyanide reacts with iron(II) sulfate followed by concentrated sulfuric acid.
Assertion (A): The functional group is responsible for the characteristic chemical properties of organic compounds.
Reason (R): Organic compounds are classified based on their functional groups into families or homologous series.
Assertion (A): In the case of disubstituted benzene rings, the substituents are numbered to provide the lowest possible numbers.
Reason (R): Substituents in the benzene ring are always named in alphabetical order.
Assertion (A): A species that donates an electron pair to a reactive site is called a nucleophile.
Reason (R): A nucleophile is electron-rich and attacks electron-deficient sites.
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) sp hybridisation | (i) Methane |
| (b) sp2 hybridisation | (ii) Ethylene |
| (c) sp3 hybridisation | (iii) Acetylene |
| (d) sp3 hybridisation | (iv) Propane |
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) Alkane | (i) Carbon-carbon single bonds |
| (b) Alkene | (ii) Carbon-carbon double bonds |
| (c) Alkyne | (iii) Carbon-carbon triple bonds |
| (d) Hydrocarbon | (iv) Compounds containing carbon and hydrogen only |
What is the primary technique used for the purification of solid organic compounds based on their solubilities?
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