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Match the reagents (List-I) with the products (List-II) obtained from phenol and select the correct option. **List-I (Reagents)** (A) (i) NaOH, (ii) CO₂, (iii) H⁺ (B) (i) Aqueous NaOH + CHCl₃, (ii) H⁺ (C) Zn dust, Δ (D) Na₂Cr₂O₇, H₂SO₄ **List-II (Products)** (I) Benzoquinone (II) Benzene (III) Salicylaldehyde (IV) Salicylic acid
Nucleophilic addition reaction will be most favoured in:
Which one of the following alcohols reacts instantaneously with Lucas reagent?
Among the following ethers, the one that will produce methyl alcohol on treatment with hot concentrated HI is:
Which amongst the following will be most readily dehydrated under acidic conditions?
Consider the following reactions: 1. $R-COOH \xrightarrow{\text{(i) } X} \xrightarrow{\text{(ii) } H_2O/HCl} R-CH_2OH$ 2. $R-CH=CH_2 \xrightarrow{\text{(i) } X} \xrightarrow{\text{(ii) } H_2O/NaOH/H_2O_2} R-CH_2-CH_2-OH$ Identify 'X' in the above reactions:
Which acid does not exhibit optical isomerism?
Identify product A and predict the type of reaction in the following transformation: $$p\text{-}O_2N\text{-}C_6H_4\text{-}Cl \xrightarrow[\text{(ii) } H^+]{\text{(i) } NaOH, 443 K} A$$
The major products formed in the following reaction are: [Reaction Structure Missing]
Mark the reaction among the following that does not give benzoic acid as the major product:
The peak voltage of the ac source is equal to
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?
In which of the following pairs, both the species are not isostructural?