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Zinc Ion

Which of the ...

Question

Which of the following substances are soluble in NaOH solution?

A

S n (O H)_{2}

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B

A l (O H)_{3}

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C

B i (O H)_{3}

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D

P b (O H)_{2}

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Solution

The correct options are
A $S n (O H)_{2}$
C $A l (O H)_{3}$
D $P b (O H)_{2}$
Apart from $B i (O H)_{3}$ , all are soluble in NaOH as they all forms complexes.
$P b (O H)_{2} + N a O H \to P b (O H)_{4}^{- 2}$

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Similar questions

State whether the statement is True or False:

A l {(O H)}_{3}

solid is soluble in aqueous solution of

N a O H

Q. The solubility of

P b (O H)_{2}

6.7 \times 10^{- 6} M

. Calculate the solubility of

P b (O H)_{2}

in a buffer solution of pH

= 8

.

Q. Which of the following is/are soluble in

N a O H

?

Q. Fill in the blanks:
(a) Salts of ________ [normal / transition] elements are generally coloured. From the ions K¹⁺, Cr³⁺, Fe²⁺, Ca²⁺, SO₃²⁻, MnO₄¹⁻, NO₃¹⁻ the ions generally coloured are _________ .
(b) The hydroxide which is soluble in excess of NaOH is ________ [Zn(OH)₂ / Fe(OH)₃ / Fe(OH)₂].
(c) The salt which will not react with NH₄OH solution ________ [ZnCl₂ / CuCl₂ / NH₄Cl / FeCl₂].
(d) The substance/ s which react/ s with hot conc. NaOH solution and undergoes a neutralization reaction ________ [Al₂O₃ / Al / Al(OH)₃].
(e) To distinguish soluble salts of zinc and lead _________ [NaOH / NH₄OH] can be used.

X

is a soluble salt which reacts with

N a O H

to give a chalky white precipitate of

P b (O H)_{2}

X

?

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