Amphoteric oxides, such as aluminium oxide, are soluble both in strongly acidic and in strongly basicsolutions :Dissolution of Al(OH)3in excess base is just a special case of the effect of complex-ion formation on solubility. Al(OH)3 dissolves because excess OHandmacr; ions convert it to the soluble complex ion Al(OH)4andmacr; (aluminate ion).The effect of pH on the solubility of Al(OH)3is shown in figure.Other examples of amphoteric hydroxides include Zn(OH)2, Cr(OH)3, Sn(OH)2and Pb(OH)2, which react withexcess OH-ions to form the soluble complex ions Zn(OH)42-(zincate ion),Cr(OH)4-(chromite ion),Sn(OH)3andmacr;(stannite ion), and Pb(OH)3andmacr; (plumbite ion), respectively. By contrast, basic hydroxides, such as Mn(OH)2, Fe(OH)2,and Fe(OH)3, dissolve in strong acid but not in strong base.Zn(OH)2is a amphoteric hydroxide and is involved in the following two equilibria in aqueous solutionsAt what pH the solubility of Zn(OH)2 be minimum ?a)4b)10c)6d)8Correct answer is option 'B'. Can you explain this answer?

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Amphoteric oxides, such as aluminium oxide, are soluble both in strongly acidic and in strongly basic
solutions :

Dissolution of Al(OH)₃ in excess base is just a special case of the effect of complex-ion formation on solubility. Al(OH)3 dissolves because excess OH¯ ions convert it to the soluble complex ion Al(OH)₄¯ (aluminate ion).The effect of pH on the solubility of Al(OH)₃is shown in figure.

Other examples of amphoteric hydroxides include Zn(OH)₂, Cr(OH)₃, Sn(OH)₂ and Pb(OH)₂, which react with
excess OH^- ions to form the soluble complex ions Zn(OH)₄^2- (zincate ion),Cr(OH)₄^- (chromite ion),Sn(OH)₃¯(stannite ion), and Pb(OH)₃¯ (plumbite ion), respectively. By contrast, basic hydroxides, such as Mn(OH)₂, Fe(OH)₂,and Fe(OH)₃, dissolve in strong acid but not in strong base.

Zn(OH)₂ is a amphoteric hydroxide and is involved in the following two equilibria in aqueous solutions

At what pH the solubility of Zn(OH)2 be minimum ?

a)
4
b)
10
c)
6
d)
8

Correct answer is option 'B'. Can you explain this answer?

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Amphoteric oxides, such as aluminium oxide, are soluble both in strong...

Let solubility of Zn(OH)₂ = s, some of will go in Zn²⁺ form and some in complex |Zn(OH)₄|^2-, of

= 10^-x M,

........(1)

[S₁ + S₂ total solubility]
So, S₁ S₂ = 1.2 x 1.2 10^-18
Now, we want S = S₁ + S₂ to be minimum we will have S₁ = S₂
So, = S₁ = S₂ = 1.2 x 10^-9 M
Hence from 1" equation we get

So,

Hence x = 10

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Most Upvoted Answer

Amphoteric oxides, such as aluminium oxide, are soluble both in strong...

Let solubility of Zn(OH)₂ = s, some of will go in Zn²⁺ form and some in complex |Zn(OH)₄|^2-, of

= 10^-x M,

........(1)

[S₁ + S₂ total solubility]
So, S₁ S₂ = 1.2 x 1.2 10^-18
Now, we want S = S₁ + S₂ to be minimum we will have S₁ = S₂
So, = S₁ = S₂ = 1.2 x 10^-9 M
Hence from 1" equation we get

So,

Hence x = 10

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Amphoteric oxides, such as aluminium oxide, are soluble both in strongly acidic and in strongly basicsolutions :Dissolution of Al(OH)3in excess base is just a special case of the effect of complex-ion formation on solubility. Al(OH)3dissolves because excess OH¯ ions convert it to the soluble complex ion Al(OH)4¯ (aluminate ion). The effect of pH on the solubility of Al(OH)3is shown in figure.Other examples of amphoteric hydroxides include Zn(OH)2, Cr(OH)3, Sn(OH)2and Pb(OH)2, which react withexcess OH¯ ions to form the soluble complex ions Zn(OH)42-(zincate ion), Cr(OH)4¯ (chromite ion), Sn(OH)3¯(stannite ion), and Pb(OH)3¯ (plumbite ion), respectively. By contrast, basic hydroxides, such as Mn(OH)2,Fe(OH)2,and Fe(OH)3, dissolve in strong acid but not in strong base.Which of the following curves best represents the variation of solubility of ferrous hydroxide Fe(OH)2 with the concentration of [H+] ions in the solution

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Amphoteric oxides,such as aluminium oxide, are soluble both in strongly acidic and in strongly basic solutions. Dissolution of Al(OH)3 in excess base is just a special case of the effect of complex-ion formation on solubility.Al(OH)3 dissolves because excess OH-ions convert it to the soluble complex ion(aluminate ion). The effect of pH on the solubility of Al(OH)3 is shown in figure.Other examples of amphoteric hydroxides include Zn(OH)2,Cr(OH)2,Sn(OH)2 andPb(OH)2, which react with excess OH- ions to from the soluble complexions Zn(OH)42-(zincate ion), Cr(OH)4¯ (chromite ion), Sn(OH)3¯(stannite ion), and Pb(OH3)¯ (plumbite ion),respectively.By contrast, basic hydroxides, such as Mn(OH)2,Fe(OH)2,and Fe(OH)3, dissolve in strong acid but not in strong base.Aluminium is mined as bauxite (Al2O3.xH2O) a hydrated oxide that is always contaminated with Fe2O3 and SiO2. In Bayer process, Al2O3 is purified by some reagents, which of the following reagents will be the best for this purification (Note : Strong heating of precipitate of Al(OH)3 produces Al2O3)

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Amphoteric oxides, such as aluminium oxide, are soluble both in strongly acidic and in strongly basicsolutions :Dissolution of Al(OH)3in excess base is just a special case of the effect of complex-ion formation on solubility. Al(OH)3 dissolves because excess OH¯ ions convert it to the soluble complex ion Al(OH)4¯ (aluminate ion).The effect of pH on the solubility of Al(OH)3is shown in figure.Other examples of amphoteric hydroxides include Zn(OH)2, Cr(OH)3, Sn(OH)2and Pb(OH)2, which react withexcess OH-ions to form the soluble complex ions Zn(OH)42-(zincate ion),Cr(OH)4-(chromite ion),Sn(OH)3¯(stannite ion), and Pb(OH)3¯ (plumbite ion), respectively. By contrast, basic hydroxides, such as Mn(OH)2, Fe(OH)2,and Fe(OH)3, dissolve in strong acid but not in strong base.Zn(OH)2is a amphoteric hydroxide and is involved in the following two equilibria in aqueous solutionsAt what pH the solubility of Zn(OH)2 be minimum ?a)4b)10c)6d)8Correct answer is option 'B'. Can you explain this answer?

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Amphoteric oxides, such as aluminium oxide, are soluble both in strongly acidic and in strongly basicsolutions :Dissolution of Al(OH)3in excess base is just a special case of the effect of complex-ion formation on solubility. Al(OH)3 dissolves because excess OH¯ ions convert it to the soluble complex ion Al(OH)4¯ (aluminate ion).The effect of pH on the solubility of Al(OH)3is shown in figure.Other examples of amphoteric hydroxides include Zn(OH)2, Cr(OH)3, Sn(OH)2and Pb(OH)2, which react withexcess OH-ions to form the soluble complex ions Zn(OH)42-(zincate ion),Cr(OH)4-(chromite ion),Sn(OH)3¯(stannite ion), and Pb(OH)3¯ (plumbite ion), respectively. By contrast, basic hydroxides, such as Mn(OH)2, Fe(OH)2,and Fe(OH)3, dissolve in strong acid but not in strong base.Zn(OH)2is a amphoteric hydroxide and is involved in the following two equilibria in aqueous solutionsAt what pH the solubility of Zn(OH)2 be minimum ?a)4b)10c)6d)8Correct answer is option 'B'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Amphoteric oxides, such as aluminium oxide, are soluble both in strongly acidic and in strongly basicsolutions :Dissolution of Al(OH)3in excess base is just a special case of the effect of complex-ion formation on solubility. Al(OH)3 dissolves because excess OH¯ ions convert it to the soluble complex ion Al(OH)4¯ (aluminate ion).The effect of pH on the solubility of Al(OH)3is shown in figure.Other examples of amphoteric hydroxides include Zn(OH)2, Cr(OH)3, Sn(OH)2and Pb(OH)2, which react withexcess OH-ions to form the soluble complex ions Zn(OH)42-(zincate ion),Cr(OH)4-(chromite ion),Sn(OH)3¯(stannite ion), and Pb(OH)3¯ (plumbite ion), respectively. By contrast, basic hydroxides, such as Mn(OH)2, Fe(OH)2,and Fe(OH)3, dissolve in strong acid but not in strong base.Zn(OH)2is a amphoteric hydroxide and is involved in the following two equilibria in aqueous solutionsAt what pH the solubility of Zn(OH)2 be minimum ?a)4b)10c)6d)8Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Amphoteric oxides, such as aluminium oxide, are soluble both in strongly acidic and in strongly basicsolutions :Dissolution of Al(OH)3in excess base is just a special case of the effect of complex-ion formation on solubility. Al(OH)3 dissolves because excess OH¯ ions convert it to the soluble complex ion Al(OH)4¯ (aluminate ion).The effect of pH on the solubility of Al(OH)3is shown in figure.Other examples of amphoteric hydroxides include Zn(OH)2, Cr(OH)3, Sn(OH)2and Pb(OH)2, which react withexcess OH-ions to form the soluble complex ions Zn(OH)42-(zincate ion),Cr(OH)4-(chromite ion),Sn(OH)3¯(stannite ion), and Pb(OH)3¯ (plumbite ion), respectively. By contrast, basic hydroxides, such as Mn(OH)2, Fe(OH)2,and Fe(OH)3, dissolve in strong acid but not in strong base.Zn(OH)2is a amphoteric hydroxide and is involved in the following two equilibria in aqueous solutionsAt what pH the solubility of Zn(OH)2 be minimum ?a)4b)10c)6d)8Correct answer is option 'B'. Can you explain this answer?.

Solutions for Amphoteric oxides, such as aluminium oxide, are soluble both in strongly acidic and in strongly basicsolutions :Dissolution of Al(OH)3in excess base is just a special case of the effect of complex-ion formation on solubility. Al(OH)3 dissolves because excess OH¯ ions convert it to the soluble complex ion Al(OH)4¯ (aluminate ion).The effect of pH on the solubility of Al(OH)3is shown in figure.Other examples of amphoteric hydroxides include Zn(OH)2, Cr(OH)3, Sn(OH)2and Pb(OH)2, which react withexcess OH-ions to form the soluble complex ions Zn(OH)42-(zincate ion),Cr(OH)4-(chromite ion),Sn(OH)3¯(stannite ion), and Pb(OH)3¯ (plumbite ion), respectively. By contrast, basic hydroxides, such as Mn(OH)2, Fe(OH)2,and Fe(OH)3, dissolve in strong acid but not in strong base.Zn(OH)2is a amphoteric hydroxide and is involved in the following two equilibria in aqueous solutionsAt what pH the solubility of Zn(OH)2 be minimum ?a)4b)10c)6d)8Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.

Here you can find the meaning of Amphoteric oxides, such as aluminium oxide, are soluble both in strongly acidic and in strongly basicsolutions :Dissolution of Al(OH)3in excess base is just a special case of the effect of complex-ion formation on solubility. Al(OH)3 dissolves because excess OH¯ ions convert it to the soluble complex ion Al(OH)4¯ (aluminate ion).The effect of pH on the solubility of Al(OH)3is shown in figure.Other examples of amphoteric hydroxides include Zn(OH)2, Cr(OH)3, Sn(OH)2and Pb(OH)2, which react withexcess OH-ions to form the soluble complex ions Zn(OH)42-(zincate ion),Cr(OH)4-(chromite ion),Sn(OH)3¯(stannite ion), and Pb(OH)3¯ (plumbite ion), respectively. By contrast, basic hydroxides, such as Mn(OH)2, Fe(OH)2,and Fe(OH)3, dissolve in strong acid but not in strong base.Zn(OH)2is a amphoteric hydroxide and is involved in the following two equilibria in aqueous solutionsAt what pH the solubility of Zn(OH)2 be minimum ?a)4b)10c)6d)8Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Amphoteric oxides, such as aluminium oxide, are soluble both in strongly acidic and in strongly basicsolutions :Dissolution of Al(OH)3in excess base is just a special case of the effect of complex-ion formation on solubility. Al(OH)3 dissolves because excess OH¯ ions convert it to the soluble complex ion Al(OH)4¯ (aluminate ion).The effect of pH on the solubility of Al(OH)3is shown in figure.Other examples of amphoteric hydroxides include Zn(OH)2, Cr(OH)3, Sn(OH)2and Pb(OH)2, which react withexcess OH-ions to form the soluble complex ions Zn(OH)42-(zincate ion),Cr(OH)4-(chromite ion),Sn(OH)3¯(stannite ion), and Pb(OH)3¯ (plumbite ion), respectively. By contrast, basic hydroxides, such as Mn(OH)2, Fe(OH)2,and Fe(OH)3, dissolve in strong acid but not in strong base.Zn(OH)2is a amphoteric hydroxide and is involved in the following two equilibria in aqueous solutionsAt what pH the solubility of Zn(OH)2 be minimum ?a)4b)10c)6d)8Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Amphoteric oxides, such as aluminium oxide, are soluble both in strongly acidic and in strongly basicsolutions :Dissolution of Al(OH)3in excess base is just a special case of the effect of complex-ion formation on solubility. Al(OH)3 dissolves because excess OH¯ ions convert it to the soluble complex ion Al(OH)4¯ (aluminate ion).The effect of pH on the solubility of Al(OH)3is shown in figure.Other examples of amphoteric hydroxides include Zn(OH)2, Cr(OH)3, Sn(OH)2and Pb(OH)2, which react withexcess OH-ions to form the soluble complex ions Zn(OH)42-(zincate ion),Cr(OH)4-(chromite ion),Sn(OH)3¯(stannite ion), and Pb(OH)3¯ (plumbite ion), respectively. By contrast, basic hydroxides, such as Mn(OH)2, Fe(OH)2,and Fe(OH)3, dissolve in strong acid but not in strong base.Zn(OH)2is a amphoteric hydroxide and is involved in the following two equilibria in aqueous solutionsAt what pH the solubility of Zn(OH)2 be minimum ?a)4b)10c)6d)8Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Amphoteric oxides, such as aluminium oxide, are soluble both in strongly acidic and in strongly basicsolutions :Dissolution of Al(OH)3in excess base is just a special case of the effect of complex-ion formation on solubility. Al(OH)3 dissolves because excess OH¯ ions convert it to the soluble complex ion Al(OH)4¯ (aluminate ion).The effect of pH on the solubility of Al(OH)3is shown in figure.Other examples of amphoteric hydroxides include Zn(OH)2, Cr(OH)3, Sn(OH)2and Pb(OH)2, which react withexcess OH-ions to form the soluble complex ions Zn(OH)42-(zincate ion),Cr(OH)4-(chromite ion),Sn(OH)3¯(stannite ion), and Pb(OH)3¯ (plumbite ion), respectively. By contrast, basic hydroxides, such as Mn(OH)2, Fe(OH)2,and Fe(OH)3, dissolve in strong acid but not in strong base.Zn(OH)2is a amphoteric hydroxide and is involved in the following two equilibria in aqueous solutionsAt what pH the solubility of Zn(OH)2 be minimum ?a)4b)10c)6d)8Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Amphoteric oxides, such as aluminium oxide, are soluble both in strongly acidic and in strongly basicsolutions :Dissolution of Al(OH)3in excess base is just a special case of the effect of complex-ion formation on solubility. Al(OH)3 dissolves because excess OH¯ ions convert it to the soluble complex ion Al(OH)4¯ (aluminate ion).The effect of pH on the solubility of Al(OH)3is shown in figure.Other examples of amphoteric hydroxides include Zn(OH)2, Cr(OH)3, Sn(OH)2and Pb(OH)2, which react withexcess OH-ions to form the soluble complex ions Zn(OH)42-(zincate ion),Cr(OH)4-(chromite ion),Sn(OH)3¯(stannite ion), and Pb(OH)3¯ (plumbite ion), respectively. By contrast, basic hydroxides, such as Mn(OH)2, Fe(OH)2,and Fe(OH)3, dissolve in strong acid but not in strong base.Zn(OH)2is a amphoteric hydroxide and is involved in the following two equilibria in aqueous solutionsAt what pH the solubility of Zn(OH)2 be minimum ?a)4b)10c)6d)8Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice JEE tests.

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