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The P-Block Elements

Question
CBSEENCH12010951
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Aluminium chloride exists as a dimer, Al2Cl6 in the solid state as well as in solution of non-polar solvents such as benzene. When dissolved in water, it gives

  • Al3+ + 3Cl-

  • Al2O3 + 6HCl

  • [Al(OH)6] 3-

  • [Al(H2O)6]3+ + 3Cl-

Solution

D.

[Al(H2O)6]3+ + 3Cl-

AlCl3 is covalent but in water, it becomes ionic due to large hydration energy of Al3+
AlCl subscript 3 space plus space 6 straight H subscript 2 straight O space space rightwards harpoon over leftwards harpoon with space space space space space space space space space space on top space left square bracket Al left parenthesis straight H subscript 2 straight O right parenthesis subscript 6 right square bracket to the power of 3 plus end exponent space plus space 3 Cl to the power of minus

Some More Questions From The p-Block Elements Chapter

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.

What is the basicity of H3PO4?

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