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In the below reaction, the structure of "A" is:
The Clemmensen reduction of a ketone is carried out in the presence of:
Match List-I with List-II. **List-I (Substrates/Reagents)** (a) $R-CO-CH_3$ (b) Benzene, $CO$, $HCl$, Anhyd. $AlCl_3$ (c) $R-CH_2-COOH$, $X_2$/Red P (d) $R-COOH + R'OH$, $H^+$ **List-II (Name of reactions)** (i) Hell-Volhard-Zelinsky reaction (ii) Gattermann-Koch reaction (iii) Haloform reaction (iv) Esterification Choose the correct answer from the options given below:
The example of a nucleophilic substitution reaction among the following is:
Which of the following compounds does not exhibit aromaticity?
The major products C and D formed in the following reaction respectively are: $$CH_3CH_2CH_2-O-C(CH_3)_3 + \text{Excess } HI \xrightarrow{\Delta} C + D$$
Which one of the following can be oxidised to the corresponding carbonyl compound?
The esters that get hydrolyzed most easily under alkaline conditions is?
Product 'P' in the following reaction is: $$R-Mg-X + CO_2 \xrightarrow{dry\ ether} Y \xrightarrow{H_3O^+} P$$
The half-life of a certain enzyme catalysed reaction is 138 s, that follows 1st order kinetics. The time required for the concentration of the substance to fall from $1.28 \text{ mg L}^{-1}$ to $0.04 \text{ mg L}^{-1}$, is:
Given below are two statements: **Statement I:** The product of the reaction of phenol with bromine depends on the nature of the solvent. **Statement II:** The reaction of phenol with bromine in $CHCl_3$ gives a monosubstituted bromo derivative whereas the reaction of phenol with bromine water yields a trisubstituted bromo derivative of phenol. In light of the above statements, choose the most appropriate answer from the options given below:
Identify A, X, Y, and Z in the reaction sequence involving Ethanal (A): 1. A → X (Reduction) 2. A → Y (Aldol Condensation) 3. A → Z (Reaction with Semicarbazide)
The compound, among the following, that will not be soluble in sodium hydrogen carbonate is:
A yellow precipitate with iodine and alkali is given by:
Reagents that can be used to convert alcohols to carboxylic acids are: (A) $CrO_3 - H_2SO_4$ (B) $K_2Cr_2O_7 + H_2SO_4$ (C) $KMnO_4 + KOH/H_3O^+$ (D) $Cu, 573 K$ (E) $CrO_3 + (CH_3CO)_2O$ Choose the most appropriate answer from the options given below:
Which of the following compounds with molecular formula, C₅H₁₀ yields acetone on ozonolysis?
An organic compound X having molecular formula $C_5H_{10}O$ yields phenyl hydrazone and gives a negative response to the iodoform test and Tollen's test. It produces n-pentane on reduction. X could be:
Propanoic acid with $Br_2/P$ yields a dibromo product. Its structure would be:
What is the correct order of the carboxylic acids' strength for the compounds labeled I, II, and III?
Predict the products in the given reaction (Reaction Scheme Missing)