List of top Chemistry Questions on Organic Chemistry

Which of the following does not form benzoic acid on oxidation with alkaline \(KMnO_4\) followed by acidification?

Benzaldehyde on treatment with concentrated NaOH undergoes Cannizzaro reaction to form:

The reagent which is used to distinguish \(\mathrm{C_6H_5N(CH_3)_2}\) and \(\mathrm{(C_2H_5)_2NH}\) is

Which of the following is most reactive towards \(S_\mathrm{N}2\) reaction?

Which of the following reaction is not correct regarding the products?

Given below are two statements Statement-I: Phenol is acidic due to resonance stabilization of phenoxide ion. Statement-II: Phenol has no reaction with \(\mathrm{Na_2Cr_2O_7}\) and concentrated \(\mathrm{H_2SO_4}\). The correct answer is

Which of the following does not undergo disproportionation reaction in the presence of concentrated NaOH?

The correct structure of the tripeptide Glycine -- Alanine -- Glycine is

Identify the sets from the following in which class of drugs are correctly matched with criteria for its classification. \[ \begin{aligned} \text{I. }&\text{Analgesics} \; \longrightarrow \; \text{Pharmacological effect} \text{II. }&\text{Sulphonamides} \; \longrightarrow \; \text{Target molecules} \text{III. }&\text{Antihistamines} \; \longrightarrow \; \text{Drug action} \end{aligned} \] The correct answer is

The common monomer for Terylene and Glyptal is

What is \(Z\) in the given sequence of reactions?

In which of the following, carbon uses \(sp^3\) hybrid orbital for bond formation with oxygen?

In the estimation of nitrogen by Kjeldahl's method, the ammonia produced by \(2.0\,\text{g}\) of an organic compound was completely neutralized by \(20\,\text{mL}\) of \(2\,\text{M}\) sulphuric acid. The percentage of nitrogen in the compound is

Identify the complex ion which does not exist.

Consider the isomers of hydrocarbon with molecular formula \(C_5H_{10}\). These isomers do not decolourise \(KMnO_4\) solution. These isomers are subjected to chlorination with chlorine in presence of light to give monochloro compounds. The total number of monochloro compounds (structural isomers only) formed is ______.}

If $32\text{ g}$ of methane reacts completely with oxygen, how much water is produced? ($\text{CH}_4 = 16\text{ g/mol}$, $\text{H}_2\text{O} = 18\text{ g/mol}$)

The oxidation states of carbon in $\text{CH}_4$ and $\text{CCl}_4$ respectively are:

In the presence of Grignard reagent (RMgX), which of the following is used to prepare a carboxylic acid?

Match Column-I with Column-II: \[ \begin{array}{ll} \textbf{Column-I} & \textbf{Column-II}\\ A.\ \text{Homoleptic} & I.\ \text{Complex containing different ligands}\\ B.\ \text{Heteroleptic} & II.\ \text{Ligand having two donor atoms}\\ C.\ \text{Hexadentate} & III.\ \text{Complex containing only one type of ligand}\\ D.\ \text{Bidentate} & IV.\ \text{Ligand having six donor atoms} \end{array} \]

Hinsberg reaction is used to test which compound and what is the reagent?

What is present in a racemic mixture?

Match Column-I (Type of isomerism) with Column-II (Examples): \[ \begin{array}{ll} \textbf{Column-I} & \textbf{Column-II} \\ A.\ \text{Linkage isomerism} & 1.\ [Co(NH_3)_5SO_4]Br/[Co(NH_3)_5Br]SO_4 \\ B.\ \text{Ionisation isomerism} & 2.\ [Co(NH_3)_5(NO_2)]Cl_2/[Co(NH_3)_5(ONO)]Cl_2 \\ C.\ \text{Coordination isomerism} & 3.\ [Co(NH_3)_6][Cr(CN)_6]/[Cr(NH_3)_6][Co(CN)_6] \end{array} \]

What is formed on aromatisation of heptane?