JEE Main 2023ChemistryCoordination CompoundsEasyMCQ

JEE Main 2023 — Coordination Compounds Question with Solution

JEE Main 2023 (13 Apr Shift 1)

Question

The mismatched combinations are

A. Chlorophyll–Co

B. Water hardness–EDTA

C. Photography-Ag(CN)2-

D. Wilkinson catalyst-Ph3P3RhCl

E. Chelating ligand–D-Penicillamine

Choose the correct answer from the options given below.

Choose an option

Show full solutionCorrect option: B
Correct answer
B

A and C only

Step-by-step explanation

The chlorophyll molecule has a central magnesium atom engulfed by a nitrogen-containing structure called a porphyrin ring; attached to the ring is a long carbon-hydrogen side chain.

Hardness of water is determined by titrating with a standard solution of ethylene diamine tetra acetic acid (EDTA) which is a complexing agent. Since EDTA is insoluble in water, the disodium salt of EDTA is taken for this experiment. EDTA can form four or six coordination bonds with a metal ion.

Silver bromide is used in photography as a component of an emulsion that helps develop a photographic image. Silver bromide is sensitive to light, and when suspended in gelatin, silver bromide's grains create a photographic emulsion.

Wilkinson's catalyst is the common name for chlorido­tris(triphenylphosphine)­rhodium(I), a coordination complex of rhodium with the formula Ph3P3RhCl

D-Penicillamine is chelating ligand.

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About this question

This is a previous-year question from JEE Main 2023, covering the Coordination Compounds chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.