White phosphorus on reaction with concentrated NaOH solution in an inert atmosphere of CO2 gives phosphine and compound (.X.) . (.X.) on acidification with HCl gives compound (.Y.) . The basicity of compound (.Y.) is

Question

White phosphorus on reaction with concentrated NaOH solution in an inert atmosphere of CO2 gives phosphine and compound (.X.) . (.X.) on acidification with HCl gives compound (.Y.) . The basicity of compound (.Y.) is (A) 3 (B) 5 (C) 2 (D) 1

Tardigrade Admin · Accepted Answer

Here Hypophosphorus acid is formed as Y and its basicity is 1. P4+NaOH+H2O arrow PH3+NaH2PO2 oversetHCl arrow H3PO2 <img class="img-fluid question-image" alt="Solution" src="https://cdn.tardigrade.in/q/nta/c-lbrcaahzstnemcek.jpg" /> Basicity = 1

Q. White phosphorus on reaction with concentrated $N a O H$ solution in an inert atmosphere of $C O_{2}$ gives phosphine and compound $(X)$ . $(X)$ on acidification with $H Cl$ gives compound $(Y)$ . The basicity of compound $(Y)$ is

3

5

2

1

Here Hypophosphorus acid is formed as Y and its basicity is 1.
$P_{4} + N a O H + H_{2} O \to P H_{3} + N a H_{2} P O_{2} \to H Cl H_{3} P O_{2}$

Basicity = 1

Q. White phosphorus on reaction with concentrated NaOH solution in an inert atmosphere of CO2​ gives phosphine and compound (X) . (X) on acidification with HCl gives compound (Y) . The basicity of compound (Y) is

3

5

2

1

Here Hypophosphorus acid is formed as Y and its basicity is 1. P4​+NaOH+H2​O→PH3​+NaH2​PO2​→HClH3​PO2​ Basicity = 1

Q. White phosphorus on reaction with concentrated $N a O H$ solution in an inert atmosphere of $C O_{2}$ gives phosphine and compound $(X)$ . $(X)$ on acidification with $H Cl$ gives compound $(Y)$ . The basicity of compound $(Y)$ is

Here Hypophosphorus acid is formed as Y and its basicity is 1.
$P_{4} + N a O H + H_{2} O \to P H_{3} + N a H_{2} P O_{2} \to H Cl H_{3} P O_{2}$

Basicity = 1