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P Block Elements question

2022 · 30 Jun · Shift 1 · Q7
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P Block Elements question

2022 · 30 Jun · Shift 1 · Q7

JEE MainChemistryP Block ElementsMCQ+4 / −1
A ⟶573 K\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{}^{573\,K}}⟶573K​ Red phosphorus ⟶under pressureheat ; 803 K\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{under\,pressure}^{heat\,;\,803\,K}}underpressure⟶heat;803K​ B Red phosphorus is obtained by heating "A" at 573 K, and can be converted to "B" by heating at 803 K under pressure. A and B, respectively, are
  1. A
    β\betaβ-black phosphorus and white phosphorus.
  2. B
    white phosphorus and β\betaβ-black phosphorus.
  3. C
    α\alphaα-black phosphorus and white phosphorus.
  4. D
    white phosphorus and α\alphaα-black phosphorus.
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