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The P-Block Elements

Question

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What happens white phosphorus is heated with NaOH solution in an inert atmosphere of CO₂?

Solution

White phosphorous dissolves in boiling NaOH solution (in a CO₂ atmosphere) to give phosphine, (PH₃₎.

PH₃ is produced.

P_{4} + 3 NaOH + 3 H_{2} O \to {PH}_{3} + \underset{(Sodium hypophosate |)}{3 {NaH}_{2} {PO}_{2}}

Some More Questions From The p-Block Elements Chapter

Mention the conditions required to maximise the yield of ammonia.

What is the covalency of nitrogen in N₂O₅?

Bond angle in PH₄⁺ is higher than that in PH₃. Why?

Write a balanced equation for the hydrolytic reactions PCl₅ in heavy water.

What is the basicity of H₃PO₄?

What happens when H₃PO₃ is heated?

List the important source of sulphur.

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