Which one of the following is formed (mainly) when red phosphorus is heated in a sealed tube at $803 \,\,K$?

  • A
    White phosphorus
  • B
    Yellow phosphorus
  • C
    $\beta$-Black phosphorus
  • D
    $\alpha$-Black phosphorus

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Similar Questions

Which of the following reaction products are represented correctly?
$(a)\ P_4 + 3NaOH(dil) + 3H_2O \to PH_3 + 3NaH_2PO_2$
$(b)\ 3Br_2 + 6NaOH(conc) \to 5NaBr + NaBrO_3 + 3H_2O$
$(c)\ NCl_3 + 3H_2O \to NH_3 + 3HOCl$
$(d)\ I_2 + 2NaOH \to NaI + NaOI + H_2O$
$(e)\ Al_4C_3 + 12H_2O \to 4Al(OH)_3 + 3CH_4$
$(f)\ N_2O_4 + H_2O \to HNO_3 + HNO_2$
$(g)\ NH_4NO_3 + NaOH \to NH_3 + NaNO_3 + H_2O$
Correct options are:

What is formed when $PCl_3$ reacts with water?

Which of the following compounds releases nitrogen dioxide $(NO_2)$ upon heating?

The three important oxidation states of phosphorus are

Which of the following compounds will not give $NH_3$ on heating?

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