(a) Alcoholic potassium hydroxide→used for β−elimination
(b) Pd/BaSO4→ Lindlar's catalyst
(c) BHC (Benzene hexachloride)→Obtained by addition reactions
(d) Polyacetylene→Electrodes in batteries
Match List−I with List−II:
| List−I (Chemicals) | List−II (Use / Preparation / Constituent) | ||
| (a) | Alcoholic potassium hydroxide | (i) | Electrodes in batteries |
| (b) | Pd/BaSO4 | (ii) | Obtained by addition reaction |
| (c) | BHC (Benzene hexachloride) | (iii) | Used for β−elimination reaction |
| (d) | Polyacetylene | (iv) | Lindlar's catalyst |
Held on 18 Mar 2021 · Verified 6 Jul 2026.
a−ii,b−i,c−iv,d−iii
a−iii,b−iv,c−ii,d−i
a−iii,b−i,c−iv,d−ii
a−ii,b−iv,c−i,d−iii
Sign in to track your attempts and accuracy.
Sign in to keep a private note on this question. Nothing you write is ever public.
Consider the following reaction sequence  Compound $(\mathrm{y})$ develops characteristic colour with neutral $\mathrm{FeCl}_{3}$ solution. Identify the INCORRECT statement from the following for the above sequence.
Given below are two statements: Statement I: Benzene is nitrated to give nitrobenzene, which on further treatment with $\mathrm{CH}_{3} \mathrm{COCl} / \mathrm{AlCl}_{3}$ will give  Statement II: $-\mathrm{NO}_{2}$ group is a $m$-directing, and deactivating group. In the light of the above statements, choose the most appropriate answer from the options given below
Given below are two statements: Statement I: $\left(\mathrm{CH}_{3}\right)_{3} \stackrel{\oplus}{\mathrm{C}}$ is more stable than $\stackrel{\oplus}{\mathrm{C}} \mathrm{H}_{3}$ as nine hyperconjugation interactions are possible in $\left(\mathrm{CH}_{3}\right)_{3} \stackrel{\oplus}{\mathrm{C}}$. Statement II: $\stackrel{\oplus}{\mathrm{C}} \mathrm{H}_{3}$ is less stable than $\left(\mathrm{CH}_{3}\right)_{3} \stackrel{\oplus}{\mathrm{C}}$ as only three hyperconjugation interactions are possible in $\stackrel{\oplus}{\mathrm{C}} \mathrm{H}_{3}$. In the light of the above statements, choose the correct answer from the options given below
Which of the following reactions is an example of Wurtz reaction?
A hydroxy compound $(\mathrm{X})$ with molar mass $122 \mathrm{~g} \mathrm{~mol}^{-1}$ is acetylated with acetic anhydride, using a large excess of the reagent ensuring complete acetylation of all hydroxyl groups. The product obtained has a molar mass of $290 \mathrm{~g} \mathrm{~mol}^{-1}$. The number of hydroxyl groups present in compound (X) is:
Work through every JEE Main Organic Chemistry PYQ, year by year.