Fill in the blanks-a Salts of -normal - transition- elements are generally coloured- From the ions K 1- Cr 3- Fe 2- Ca 2- SO 32- MnO 41- NO 31- 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 NH 4 OH solution - ZnCl 2 - CuCl 2 - NH 4 Cl - FeCl 2- -d The substance- s which react- s with hot conc- NaOH solution and undergoes a neutralization reaction - Al 2 O 3 - Al - Al OH 3-e To distinguish soluble salts of zinc and lead - NaOH - NH 4 OH - can be used-

(a) Salts of transition elements are generally coloured. From the ions K1+, Cr3+, Fe2+, Ca2+, SO32 minus;, MnO41 minus;, NO31 minus; nbsp;the ions gener ...

You visited us 6 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard X

Chemistry

Ionic Salts and Their Characteristic

Fill in the b...

Question

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.

Open in App

Solution

(a) Salts of transition elements are generally coloured. From the ions K¹⁺, Cr³⁺, Fe²⁺, Ca²⁺, SO₃²⁻, MnO₄¹⁻, NO₃¹⁻ the ions generally coloured are Cr³⁺, Fe²⁺ and MnO₄^- .

(b) The hydroxide that is soluble in excess of NaOH is Zn(OH)₂.

(c) The salt that will not react with NH₄OH solution is NH₄Cl.

(d) The substance/s that react/s with hot concentrated NaOH solution and undergoes a neutralisation reaction is/are Al₂O₃ and Al(OH)₃.

(e) To distinguish soluble salts of zinc and lead NH₄OH can be used.

Suggest Corrections

Similar questions

Q. The substance/s which react/s with hot conc.

N a O H

solution and undergoes a neutralization reaction is___________.

Q. Identify the inorganic salt

A

whose aqueous solution gives following reactions.
(i) pale yellow precipitate with

A g N O_{3}

solution, insoluble in dil

H N O_{3}

(ii) white precipitate with

N H_{4} O H

and also with

N a O H

solution. However the precipitate does not dissolve in excess of

N H_{4} O H

but soluble in excess of

N a O H

Q. Two coloured salt solutions of two metals

A

and

B

gave precipitates with

N a O H

and

{N H}_{4} O H

. The oxidation states of salts metal

A

and

B

are same. On further addition of

{N H}_{4} O H

, the precipitate disappears, in the case of

B

. There is no such change in the case of '

A

' either with

N a O H

{N H}_{4} O H

. Identify

A

and

B

. Give necessary equations :

Q. The salt which will not react with

N H_{4} O H

solution is:

Q. Assertion :We can distinguish between

Z n^{2 +}

and

P b^{2 +}

using ammonium hydroxide solution. Reason: Zinc ions with ammonium hydroxide gives white precipitate of zinc hydroxide which dissolves in excess of ammonium hydroxide. Aqueous solution of lead salt do not show any change on treatment with ammonium hydroxide

Join BYJU'S Learning Program