Chemistry · 2020
JEE Main · 6 September 2020, Shift 2 · Q41
A crystal is made up of metal ions ' M_1 ' and ' M_2 ' and oxide ions. Oxide ions form a ccp lattice structure. The cation ' M_1 ' occupies 50% of…
A crystal is made up of metal ions ' $\displaystyle \mathrm{M}_1$ ' and ' $\displaystyle \mathrm{M}_2$ ' and oxide ions. Oxide ions form a ccp lattice structure. The cation ' $\displaystyle \mathrm{M}_1$ ' occupies $\displaystyle 50$% of octahedral voids and the cation ' $\displaystyle \mathrm{M}_2$ ' occupies $\displaystyle 12.5$% of tetrahedral voids of oxide lattice. The oxidation numbers of ' $\displaystyle \mathrm{M}_1$ ' and ' $\displaystyle \mathrm{M}_2$ ' are, respectively :
Official answer
(1)
$\displaystyle +2, +4$
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JEE Main 2020 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.