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On heating with concentrated \( \mathrm{NaOH} \) solution in an inert atmosphere of \( \mathrm{CO}_{2} \), white
phosphorous gives a gas. Which of the following statement is incorrect about the gas?
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phosphorous gives a gas. Which of the following statement is incorrect about the gas?
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The correct answer is:
It is more basic than \( \mathrm{NH}_{3} \).
\( \mathrm{P}_{4}+3 \mathrm{NaOH}+3 \mathrm{H}_{2} \mathrm{O}-\stackrel{\Delta}{\mathrm{CO}_{2}}>3 \mathrm{~N} a \mathrm{H}_{2} \mathrm{PO}_{2}+\mathrm{PH}_{3} \uparrow \) (phosphine)
\( \mathrm{PH}_{3} \) is less basic than \( \mathrm{NH}_{3} \) because lone pairs of electrons are less available in \( \mathrm{PH}_{3} \) and \( \mathrm{NH}_{3} \) due to larger size of
the phosphorous than nitrogen.
\( \mathrm{PH}_{3} \) is less basic than \( \mathrm{NH}_{3} \) because lone pairs of electrons are less available in \( \mathrm{PH}_{3} \) and \( \mathrm{NH}_{3} \) due to larger size of
the phosphorous than nitrogen.
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