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The P-Block Elements

Question

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How is nitrogen prepared in the laboratory? Write the chemical equations of the reactions involved.

Solution

Nitrogen is prepared by treating an aqueous solution of ammonium chloride with sodium nitrite.

{NH}_{4} Cl (aq) + {NaNO}_{2} (aq) \to N_{2} (g) + 2 H_{2} O (l) + NaCl (aq)

Some More Questions From The p-Block Elements Chapter

Why are pentahalides more covalent than trihalides?

Why is BiH₃ the strongest reducing agent amongst all the hydrides of Group 15 elements?

Why is N₂ less reactive at room temperature?

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.

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