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The P-Block Elements

Question

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Complete the following chemical equation:
${Cu}^{2 +} (aq) + \underset{(excess)}{{NH}_{3} (aq)} \to . . . . . .$

Solution

When Cu²⁺ react with NH₃, it from complex with deep blue colour.

\underset{Blue}{{Cu}^{2 +} (aq)} + 4 {NH}_{3} (aq) ⇌ \underset{Deep Blue}{{[Cu ({NH}_{3})_{4}]}^{2 +}} (aq)

Some More Questions From The p-Block Elements Chapter

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.

Write the order of thermal stability of the hydrides of Group 16 elements.

Why is H₂O a liquid and H₂S a gas?

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