On heating with concentrated NaOH solution in an inert atmosphere of $C O_{2}$ white phosphorus gives a gas. Which of the following statements is incorrect about the gas?

It is highly poisonous and has smell like rotten fish.

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Its solution in water decomposes in the presence of light.

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It is more basic than

N H_{3}

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It is less basic than

N H_{3}

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Solution

The correct option is A It is more basic than $N H_{3}$ .

On heating with concentrated NaOH in an inert environment of $C O_{2}$ ,it forms $P H_{3}$ . $P_{4} + 3 N a O H + 3 H_{2} O \to P H_{3} + 3 N a H_{2} P O_{2}$ .
$P H_{3}$ is more basic than $N H_{3}$ as we move frrom top to to bottom in a group the basic nature of hydrides decreases.
Hence option C is correct.

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On heating with concentrated NaOH solution in an inert atmosphere of CO2 white phosphorus gives a gas. Which of the following statements is incorrect about the gas?

The correct option is A It is more basic than NH3. On heating with concentrated NaOH in an inert environment of CO2 ,it forms PH3. P4+3NaOH+3H2O→PH3+3NaH2PO2.PH3 is more basic than NH3 as we move frrom top to to bottom in a group the basic nature of hydrides decreases.Hence option C is correct.

On heating with concentrated NaOH solution in an inert atmosphere of $C O_{2}$ white phosphorus gives a gas. Which of the following statements is incorrect about the gas?