JEE Main 2022 · 26 Jun · Shift 2 · Chemistry Q82

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ChemistryInteger+4 / -1Question 82 of 90

In a solid AB, A atoms are in ccp arrangement and B atoms occupy all the octahedral sites. If two atoms from the opposite faces are removed, then the resultant stoichiometry of the compound is $\mathrm{A_xB_y}$ . The value of $x$ is ______. [nearest integer]

Your answer

Answer and worked solution

Official answer: 3

ccp cell. 4 A atoms and 4 B atoms (octahedral sites).

Remove two face atoms (each counts $\frac12$ ): A becomes $4-1=3$ , so $\mathrm{A_3B_4}$ and $x=3$ .

Answer: 3

Topics:Crystal lattices and unit cells

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JEE Main 2022 · 26 Jun · Shift 2, Chemistry question 82