JEE Main 2023ChemistryS Block ElementsCompounds Of Alkaline Earth MetalseasyNumerical

JEE Main 2023S Block Elements Question with Solution

From: JEE Main 2023 (Online) 11th April Evening Shift

Question

and , represent formula of the crystalline forms of nitrate salts. Sum of and is _____________.

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Show full solutionCorrect answer: 6
Correct answer
6

Step-by-step explanation

Magnesium nitrate typically crystallizes as a hexahydrate, which means it has six water molecules in its crystal structure. So, X = 6.

On the other hand, barium nitrate commonly crystallizes as an anhydrous salt, meaning it does not incorporate water molecules into its crystal structure. So, Y = 0.

Therefore, the sum of X and Y would indeed be 6 + 0 = 6.

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About this question

This is a previous-year question from JEE Main 2023, covering the S Block Elements 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.