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MHT CET 2022 Chemistry question

ChemistryThe Solid StateMHT CET 2022

Not in JEE Main or NEET syllabus

Find the molar mass of an element that crystallizes forming unit cell structure having edge length 4 x 10 cm and containing 4 particles ( = 19.7 g cm)

Answer: (B)

Solution

Density of a unit cell: , so . With cm, cm, : \dfrac${19.7 ×

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Question ID VK-093677