Verified Solution • 2025–26 Session moderate

QJEEM21Chdee9: JEE Main 2021 Chemistry - Class 11 JEEM21Chdee9 Solution: Match List - I with List - II : List - I (Chemicals) (a)…

Match List - I with List - II :

List - I (Chemicals)

(a) Alcoholic potassium hydroxide

(b) Pd/BaSO4

(c) BHC (Benzene hexachloride)

(d) Polyacetylene

List - II (Use / Preparation / Constituent)

(i) Electrodes in batteries

(ii) Obtained by addition reaction

(iii) Used for β\beta - elimination reaction

(iv) Lindlar's catalyst

Choose the most appropriate match :

Multiple Choice Options

  • A (a) - (ii), (b) - (i), (c) - (iv), (d) - (iii)
  • B (a) - (iii), (b) - (iv), (c) - (ii), (d) - (i)
  • C (a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)
  • D (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii)

Step-by-Step Verified Solution

Alc. KOH causes elimination

Pd / BaSO4 – Lindlar’s catalyst

BHC is obtained by the addition reaction of Cl2 with benzene in presence of U.V.

Thin film of polyacetylene can be used as electrode in batteries.

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